**551**

**The number obtained by interchanging the two digits of a two-digit number is less than the** **original number by 45. If the sum of the two digits of the number so obtained is 13, then what** **is the original number choose which one is correct?**

**A. 49**

**B. 94 (Answer)**

**C. 83**

**D. Either (a) or (b)**

**E. None of these**

**552\**

**The sum of five consecutive even numbers of set x is 440. Find the sum of a different set of** **five consecutive integers whose second least number is 121 less than double the least number** **of set x choose which one is correct?**

**A. 248**

**B. 240 (Answer)**

**C. 228**

**D. 236**

**E. None of these**

**553**

**In a series of six consecutive even numbers, the sum of the second and sixth numbers is 24.** **What is the fourth number choose which one is correct?**

**A. 8**

**B. 12 (Answer)**

**C. 6**

**D. 14**

**E. None of these**

**554**

**The sum of the digits of a two-digit number is 12. The difference of the digits is 6. Find the** **number choose which one is correct?**

**A. 93**

**B. 39**

**C. 75**

**D. 48**

**E. Either (a) or (b) (Answer)**

**555**

**The tens digit of a two-digit number is two more than its unit digit. The two-digit number is 7** **times the sum of the digits. Find the units digits choose which one is correct?**

**A. 1**

**B. 2 (Answer)**

**C. 3**

**D. 4**

**E. None of these**

**556**

**Solve the equation for x : 6x – 27 + 3x = 4 + 9 – x (Answer)**

**A. 4 (Answer)**

**B. 5**

**C. 6**

**D. -4**

**E. None of these**

**557**

**Solve the equation for x : 19(x + y) + 17 = 19(-x + y) – 21**

**A. -1 (Answer)**

**B. -2**

**C. -3**

**D. -4**

**E. None of these**

**558**

**The cost of 2 chairs and 3 tables is Rs.1300. The cost of 3 chairs and 2 tables is Rs.1200. The** **the cost of each table is more than that of each chair by__________ choose which one is correct?**

**A. Rs.70**

**B. Rs.75**

**C. Rs.50**

**D. Rs.60**

**E. None of these (Answer)**

**559**

**The denominator of a fraction is 1 less than twice the numerator. If the numerator and** **denominators are both increased by 1, the fraction becomes 3/5. Find the fraction choose which one is correct?**

**A. 2/3**

**B. 3/5**

**C. 4/7**

**D. 5/9 (Answer)**

**E. None of these**

**560**

**The cost of 10 kg of apples is equal to the cost of 24 kg of rice. The cost of 6 kg of flour equals** **the cost of 2 kg of rice. The cost of each kg of flour is Rs.20.50. Find the total cost of 4 kg of** **apples, 3 kg of rice and 5 kg of flour choose which one is correct?**

**A. Rs.849.40**

**B. Rs.877.40 (Answer)**

**C. Rs.901.60**

**D. Rs.815.20**

**E. None of these**

**561**

**A question paper consists of five problems, each problem having three interval choices. In how** **many ways can a candidate attempt one or more problems choose which one is correct?**

**A. 63**

**B. 511**

**C. 1023 (Answer)**

**D. 15**

**562**

**In a class there are 20 boys and 25 girls. In how many ways can a boy and a girl be selected**** choose which one is correct?**

**A. 400**

**B. 500 (Answer)**

**C. 600**

**D. 20**

**563**

**In how many ways can three consonants and two vowels be selected from the letters of the** **word “TRIANGLE” choose which one is correct?**

**A. 25**

**B. 13**

**C. 40**

**D. 30 (Answer)**

**564**

**A bag contains nine yellow balls, three white balls and four red balls. In how many ways can** **two balls be drawn from the bag choose which one is correct?**

**A. ⁹C₂**

**B. =C₂**

**C. ;⁶C₂ ( nswer)**

**D. ;<C₂**

**565**

**How many four digit even numbers can be formed using the digits {2, 3, 5, 1, 7, 9}**

**A. 60 (Answer)**

**B. 360**

**C. 120**

**D. 240**

**566**

**The number of ways in which six boys and six girls can be seated in a row for a photograph so** **that no two girls sit together is_________ choose which one is correct?**

**A. (6!)2**

**B. 6! * ⁷P₆**

**C. 2(6!)**

**D. 6! * 7**

**567**

**A letter lock consists of three rings each marked with six different letters. The number of** **distinct unsuccessful attempts to open the lock is at the most__________ choose which one is correct?**

**A. 216**

**B. 243**

**C. 215 (Answer)**

**D. 729**

**568**

**A committee has 5 men and 6 women. What are the number of ways of selecting a group of** **eight people choose which one is correct?**

**A. 165 (Answer)**

**B. 185**

**C. 205**

**D. 225**

**569**

**What are the number of ways to select 3 men and 2 women such that one man and one** **Women are always selected choose which one is correct?**

**A. 100**

**B. 60**

**C. 30 (Answer)**

**D. 20**

**570**

**The number of permutations of the letters of the word ‘MESMERISE’ is___________**** choose which one is correct?**

**A. 9!/(2!)2 3! (Answer)**

**B. 9!/(2!)3 3!**

**C. 9!/(2!)2 (3!)2**

**D. 5!/(2!)2 3!**

**571**

**The number of arrangements that can be made with the letters of the word MEADOWS so that** **the vowels occupy the even places choose which one is correct?**

**A. 720**

**B. 144 (Answer)**

**C. 120**

**D. 36**

**572**

**A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and** **a shirt choose which one is correct?**

**A. 21**

**B. 12**

**C. 9**

**D. 108 (Answer)**

**573**

**There are 30 people in a group. If all shake hands with one another , how many handshakes** **are possible choose which one is correct?**

**A. 870**

**B. 435 (Answer)**

**C. 30!**

**D. 29! + 1**

**574**

**In how many different ways can the letters of the word ‘OPTIC L’ be arranged so that the** **vowels always come together choose which one is correct?**

**A. 120**

**B. 720 (Answer)**

**C. 4320**

**D. 2160**

**575**

**In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3** **women choose which one is correct?**

**A. 63 (Answer)**

**B. 90**

**C. 126**

**D. 45**

**576**

**In how many different ways can four books A, B, C and D be arranged one above another in a** **vertical order such that the books A and B are never in continuous position choose which one is correct?**

**A. 9**

**B. 12 (Answer)**

**C. 14**

**D. 18**

**577**

**There are two identical red, two identical black, and two identical white balls.In how many** **different ways can the balls be placed in the cells (Each cell to contain one ball) shown above** **such that balls of the same colour do not occupy any two consecutive cells choose which one is correct?**

**A. 15**

**B. 18**

**C. 24 (Answer)**

**D. 30**

**578**

**Twelve people from a club, by picking lots. One of them will host a dinner for all once in a** **month. The number of dinners a particular member has to host in one year is________ choose which one is correct?**

**A. One**

**B. Zero**

**C. Three**

**D. Cannot be determined (Answer)**

**579**

**A person ordered 5 pairs of black socks and some pairs of brown socks. The price of a black** **pair was thrice that of a brown pair while preparing the bill the bill clerk inter-changed the** **number of black and brown pairs by mistake which increased the bill by 100% what was the** **number of pairs of brown socks in the original order choose which one is correct?**

**A. 10**

**B. 15**

**C. 20**

**D. 25 (Answer)**

**580**

**Three dice (each having six faces with each face having one number from 1 or 6) are ****rolled.**

**What is the number of possible outcomes such that ****at least one dice shows the number 2 choose which one is correct?**

**A. 36**

**B. 81**

**C. 91 (Answer)**

**D. 116**

**581**

**A mixed doubles tennis game is to be played two teams(each consists of one male and one** **female) There are four married couples. No team consists of a husband and his wife. What is** **the maximum number of games that can be played choose which one is correct?**

**A. 12**

**B. 48**

**C. 36**

**D. 42 (Answer)**

**582**

**In a question paper, there are four multiple choice type questions, each question has five** **choices with only one choice for it’s correct answer. What is the total number of ways in which** **a candidate will not get all the four answers correct choose which one is correct?**

**A. 19**

**B. 120**

**C. 624 (Answer)**

**D. 1024**

**583**

**In how many different ways can six players be arranged in a line such that two of them, Asim** **and Raheem are never together choose which one is correct?**

**A. 120**

**B. 240**

**C. 360**

**D. 480 (Answer)**

**584**

**Six points are marked on a straight line and five points are marked on another line which is** **parallel to the first line. How many straight lines, including the first two, can be formed with** **these points choose which one is correct?**

**A. 29**

**B. 32 (Answer)**

**C. 55**

**D. 30**

**585**

**6 of 5/8 / 5/8 – 1/8 = ______**** choose which one is correct?**

**A. 6 1/8**

**B. 5 3/4**

**C. 6 3/4**

**D. 5 7/8 (Answer)**

**586**

**(22 * 495 + 891 * 44) / (33 * 176 + 55 * 264) = _________**** choose which one is correct?**

**A. 1**

**B. 2**

**C. 69/28 (Answer)**

**D. 66/17**

**587**

**[(62.25/2.5) + (12.5/0.5)] / [(0.75 * 9) + (3.5 * 3.5)] = _________**** choose which one is correct?**

**A. 1 17/38**

**B. 1 38/17**

**C. 2 38/17**

**D. None of these (Answer**)

**587**

**(180/37 of 14.8) / (17/60.1 of 180.30) = _______**** choose which one is correct?**

**A. 1.4 (Answer)**

**B. 1.6**

**C. 1.5**

**D. 1.2**

**588**

**45/100 * 125 + 22.22 = ________**** choose which one is correct?**

**A. 78 (Answer)**

**B. 76**

**C. 74**

**D. 72**

**589**

**12 3/4 * (1 2/17 / 8 1/6) / 5 4/3 = __________**** choose which one is correct?**

**A. 1**

**B. 27/98 (Answer)**

**C. 6/17**

**D. 27/17**

**590**

**Which of the following groups of fractions is in descending order**** choose which one is correct?**

**A. 8/15, 9/13, 6/11**

**B. 8/15, 6/11, 9/13**

**C. 9/13, 6/11, 8/15 (Answer)**

**D. 6/11, 8/15, 9/13**

**591**

**The value of (2.75)3 – (2.00)3 – (0.75)3 is__________**** choose which one is correct?**

**A. 3 * 2.75 * 2.75 * 2.75**

**B. 3 * 2.00 * 2.00 * 2.00**

**C. 3 * 2.75 * 0.75 * 2.75**

**D. 4.5 * 2.75 (Answer)**

**592**

**{20 – [7 – (3 -2)] + 1/3 (4.2)} / 1.4 = ________**** choose which one is correct?**

**A. 11 (Answer)**

**B. 12**

**C. 14**

**D. 19**

**593**

**Jameel gets on the elevator at the 11th floor of a building and rides up at the rate of 57 floors** **per minute. At the same time, Nasir gets on an elevator at the 51st floor of the same building** **and rides down at the rate of 63 floors per minute. If they continue travelling at these rates,then at which floor will their paths cross choose which one is correct?**

**A. 19**

**B. 28**

**C. 30 (Answer)**

**D. 37**

**594**

**A man has some hens and cows. If the number of heads be 48 and the number of feet equals** **140, then the number of hens will be_________ choose which one is correct?**

**A. 22**

**B. 23**

**C. 24**

**D. 26 (Answer)**

**595**

**Free notebooks were distributed equally among children of a class. The number of notebooks** **each child got one-eighth of the number of children. Had the number of children been** **half, each child would have got 16 notebooks. Total how many notebooks were distributed choose which one is correct?**

**A. 256**

**B. 432**

**C. 512 (Answer)**

**D. 640**

**596**

**In a regular week, there are 5 working days and for each day, the working hours are 8. A man** **gets Rs. 2.40 per hour for regular work and Rs. 3.20 per hour for overtime. If he earns Rs. 432** **in 4 weeks, then how many hours does he work for______ choose which one is correct?**

**A. 160**

**B. 175 (Answer)**

**C. 180**

**D. 195**

**597**

**105.126 * 35.201 – 90.23 * 3 + 55.11 * 27.01 = ____________**** choose which one is correct?**

**A. 4890 (Answer)**

**B. 40000**

**C. 271**

**D. 5996**

**598**

**(0.9 * 0.9 – 0.8 * 0.8)/1.7 = _________**** choose which one is correct?**

**A. 0.1 (Answer)**

**B. 0.2**

**C. 0.3**

**D. 0.4**

**599**

**5/8 * 2(2/5 – 5/4) / 1 1/4 = _________**** choose which one is correct?**

**A. 1/5 (Answer)**

**B. 4/5**

**C. 6/5**

**D. 8/5**

**600**

**12(13/18) + 16(11/27) – 10(5/9) = _________**** choose which one is correct?**

**A. 182/3**

**B. 1831/54 (Answer)**

**C. 18**

**D. 201/2**

**601**

**Positive integers indicated by x and y satisfy 3 1/x * y 2/5 = 13 3/4, the fractions being in their** **lowest terms, then x = choose which one is correct? and y = ____________ choose which one is correct?**

**A. x = 4, y = 8**

**B. x = 4, y = 4**

**C. x = 2, y = 4**

**D. x = 8, y = 4 (Answer)**

**602**

**If (461 + 462 + 463 + 464) is divisible by **** choose which one is correct?, then choose which one is correct? =_____________ choose which one is correct?**

**A. 3**

**B. 11**

**C. 13**

**D. None of these (Answer)**

**603**

**rectangular measure 8cm on length and it’s diagonals measures 10cm what is the perimeter** **of the rectangular choose which one is correct?**

**A. 36cm**

**B. 38cm**

**C. 28cm (Answer)**

**D. 18cm**

**604**

**The perimeter of a floor of a room is 18m.What is the area of four walls of the room if it; a** **height is 3m choose which one is correct?**

**A. 21 Sq.m**

**B. 42 Sq.m**

**C. 54 Sq.m (Answer)**

**D. 108 Sq.m**

**605**

**parallelogram has sides 60 m and 40 m and one of its diagonals is 80 m long then its area** **is:__________ choose which one is correct?**

**A. 480 sq.m**

**B. 320 sq.m**

**C. 600√15 sq.m ( nswer)**

**D. 450√15**

**606**

**If a square and a rhombus stand on the same base then the ratio of the areas of the squares** **and the rhombus is:_________ choose which one is correct?**

**A. greater than 1**

**B. equal to 1 (Answer)**

**C. equal to 1/2**

**D. equal to ¼**

**607**

**In a rhombus whose area is 144 sq.cm one of its diagonals is twice as long as the other. The** **lengths of its diagonals are:_________ choose which one is correct?**

**A. 24 cm,48cm**

**B. 12cm,24cm (Answer)**

**C. 6√2cm,12√2cm**

**D. 6cm,12cm**

**608**

**The length of a rope by which a cow must be tethered in order that she may be able to graze** **an area of 9856 sq.m is:________ choose which one is correct?**

**A. 56m (Answer)**

**B. 64m**

**C. 88m**

**D. 168m**

**609**

**The circumferences of two concentric circles are 176 m and 132 cm respectively. What is the** **difference between their radii choose which one is correct?**

**A. 5 m**

**B. 7 m (Answer)**

**C. 8 m**

**D. 44 m**

**610**

**The diameter of a circle is 105 cm less than the circumference what is the diameter of the** **circle choose which one is correct?**

**A. 44 cm**

**B. 46 cm**

**C. 48 cm**

**D. 49 cm (Answer)**

**611**

**A circular wire of radius 42 cm is cut and bent in the form of a rectangle whose sides are in the** **ration of 6:5 The smaller side if the rectangle is:_________ choose which one is correct?**

**A. 30 cm**

**B. 60 cm (Answer)**

**C. 72 cm**

**D. 132 cm**

**612**

**If the diameter of a circle is increased by 100 % its area is increased by:_________**** choose which one is correct?**

**A. 100%**

**B. 200%**

**C. 300% (Answer)**

**D. 400%**

**613**

**If the radius of a circle be reduced by 50% its area is reduced by:_________**** choose which one is correct?**

**A. 25 %**

**B. 50%**

**C. 75% (Answer)**

**D. 100%**

**614**

**Area of a square with side x is equal to the area of a triangle with base x. The altitude of the** **triangle is:________ choose which one is correct?**

**A. x/2**

**B. x**

**C. 2x (Answer)**

**D. 4x**

**615**

**If the diagonal of a square is doubled. How does the area of the square change**** choose which one is correct?**

**A. Becomes fourfold (Answer)**

**B. Becomes threefold**

**C. Becomes twofold**

**D. none of the above**

**616**

**If the base of rectangle is increased by 10 % and the area is unchanged then the corresponding** **altitude must be decreased by:________ choose which one is correct?**

**A. 9 1/11 % (Answer)**

**B. 10%**

**C. 11%**

**D. 11 1/9 %**

**617**

**The length of a rectangle is twice its breadth, if length is decreased by 5 cm and the breadth is** **increased by 5 cm. The length of the rectangle is_________ choose which one is correct?**

**A. 20 cm**

**B. 30 cm**

**C. 40 cm (Answer)**

**D. 50 cm**

**618**

**C. 120m × 36m (Answer)**

**D. 135m × 32m**

**619**

**Which one of the following has a greater perimeter than the rest**** choose which one is correct?**

**A. A square with an area of 36 sq.cm**

**B. An Equilateral Triangle with a side of 9 cm**

**C. A rectangle with 10 cm as length and 40 sq.cm as area (Answer)**

**D. A circle with a radius of 4 cm**

**620**

**The perimeter of a semi circle is 144 cm then the radius is_________**** choose which one is correct?**

**A. 25 cm**

**B. 28 cm (Answer)**

**C. 30 cm**

**D. 35 cm**

**621**

**The radius of a ****semicircle is 6.3 cm then its perimeter is choose which one is correct?**

**A. 35.4 cm**

**B. 32.4 cm (Answer)**

**C. 32 cm**

**D. 30 cm**

**622**

**What is the ratio between perimeters of two squares one having 3 times the diagonal then the** **other choose which one is correct?**

**A. 4:8**

**B. 1:4**

**C. 6:2**

**D. 3:1 (Answer)**

**623**

**A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy** **ground shall it graze choose which one is correct?**

**A. 1120 m2**

**B. 1250 m2**

**C. 1210 m2 (Answer)**

**D. 1200 m2**

**624**

**The cross-section of a cannel is a trapezium in shape. If the channel is 10 m wide at the top and** **6 m wide at the bottom and the area of cross-section is 640 sq m, the depth of channel** **is_________ choose which one is correct?**

**A. 20 m**

**B. 60 m**

**C. 40 m**

**D. 80 m (Answer)**

**625**

**The side of a rhombus is 26 m and the length of one of its diagonals is 20 m. The area of the** **rhombus is_______ choose which one is correct?**

**A. 529 sq m**

**B. 240 sq m**

**C. 260 sq m**

**D. 480 sq m (Answer)**

**626**

**An agricultural field is in the form of a rectangle of length 20m and width 14m. A pit 6m long** **3m wide and 2.5m deep is dug in a corner of the field and earth taken out of the pit is spread** **uniformly over. The remaining area of the field. The level of the field has been raised by________ choose which one is correct?**

**A. 15.16cm**

**B. 16.17cm**

**C. 17.18cm (Answer)**

**D. 18.19m**

**627**

**A tank is 7m long and 4m wide at what speed should water run through pipes 5cm broad and** **4cm deep so that in 6 hours and 18 minutes, the water level in the tank rises by 4.5cm choose which one is correct?**

**A. 12km/hr**

**B. 10km/hr (Answer)**

**C. 14km/hr**

**D. None of these**

**628**

**What part of a ditch 48m long 16.5 broad and 4m deep can be filled by the earth got by** **digging a cylindrical tunnel of diameter 4m and length 56m choose which one is correct?**

**A. 1/9**

**B. 2/9 (Answer)**

**C. 7/9**

**D. 8/9**

**629**

**Find the least number which when divided by 35 leaves remainder 25, when divided by 25** **leaves remainder 15 and when divided by 15 leaves remainder 5 choose which one is correct?**

**A. 420**

**B. 515 (Answer)**

**C. 435**

**D. 518**

**Page 285**

**630**

**What is the least number which when divided by 8, 12, 18 and 24 leaves the remainders 4, 8,** **14 and 20 respectively choose which one is correct?**

**A. 78**

**B. 68 (Answer)**

**C. 58**

**D. None**

**631**

**The wheels revolve round a common horizontal axis. They make 15, 20 and 48 revolutions in a** **minute respectively. Starting with a certain point on the circumference down wards. After** **what interval of time will they come together in the same position choose which one is correct?**

**A. 1 min (Answer)**

**B. 2 min**

**C. 3 min**

**D. None**

**632**

**Two numbers 4242 and 2903 when divided by a certain number of three digits, leave the same** **remainder. Find the number choose which one is correct?**

**A. 101**

**B. 103 (Answer)**

**C. 107**

**D. 113**

**633**

**There are four prime numbers written in ascending order of magnitude. The product of the** **The first three are 385 and of the last three are 1001. Find the fourth number choose which one is correct?**

**A. 5 (Answer)**

**B. 7**

**C. 11**

**D. 13**

**634**

**A room is 4 meters 37 cm long and 3 meters 23cm broad. It is required to pave the floor with** **minimum square slabs. Find the number of slabs required for this purpose choose which one is correct?**

**A. 485**

**B. 431**

**C. 391 (Answer)**

**D. 381**

**635**

**LCM of two numbers is 138. But their (Greatest common divisor) GCD is 23. The numbers are** **in a ratio 1:6. Which is the largest number amongst the two choose which one is correct?**

**A. 46**

**B. 138 (Answer)**

**C. 69**

**D. 23**

**636**

**Greatest Common Divisor of two numbers is 8 while their Least Common Multiple is 144. Find** **the other number if one number is 16.**

**A. 108**

**B. 96**

**C. 72 (Answer)**

**D. 36**

**637**

**The L.C.M. of two numbers is 48. The numbers are in the ratio 2 : 3. Then sum of the number** **is_________ choose which one is correct?**

**A. 28**

**B. 32**

**C. 40 (Answer)**

**D. 64**

**638**

**The smallest fraction, which each of 6/7, 5/14, 10/21 will divide exactly is_________**** choose which one is correct?**

**A. 30/7 (Answer)**

**B. 30/98**

**C. 60/147**

**D. 50/294**

**639**

**What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and** **30 choose which one is correct?**

**A. 196**

**B. 630 (Answer)**

**C. 1260**

**D. 2520**

**640**

**Which of the following fractions is the largest**** choose which one is correct?**

**A. 7/8 (Answer)**

**B. 13/16**

**C. 31/40**

**D. 63/80**\

**641**

**The H.C.F of two numbers is 23 and the other two factors of their L.C.M are 13 and 14. The** **the larger of the two numbers is___________ choose which one is correct?**

**A. 276**

**B. 299**

**C. 322 (Answer)**

**D. 345**

**642**

**Find the highest common factor of 36 and 84.**

**A. 4**

**B. 6**

**C. 12 (Answer)**

**D. 18**

**643**

**1095/1168 when expressed in simplest form is:**

**A. 13/16**

**B. 15/16 (Answer)**

**C. 17/26**

**D. 25/26**

**644**

**Which of the following ****has the most number of divisors choose which one is correct?**

**A. 99**

**B. 101**

**C. 176 (Answer)**

**D. 182**

**645**

**Calculate the number of bricks, each measuring 25 cm * 15 cm * 8 cm required to construct a** **wall of dimensions 10 m * 4 m * 5 m when 10% of its volume is occupied by mortar choose which one is correct?**

**A. 4000**

**B. 5000**

**C. 6000 (Answer)**

**D. 7000**

**D. 1220 cm2**

**646**

**The slant height of a cone is 12 cm and radius of the base is 4cm, find the curved surface of the** **cone.**

**A. 74 π cm2**

**B. 36 π cm2**

**C. 48 π cm2 ( Answer)**

**D. 24 π cm2**

**647**

**The area of a base of a cone is 30 cm2. If the height of the cone is 6cm, find its volume**** choose which one is correct?**

**A. 120 cm3**

**B. 40 cm3**

**C. 50 cm3**

**D. 60 cm3 (Answer)**

**648**

**The volumes of two cubes are in the ratio 27: 125, what shall be the ratio of their surface** **areas choose which one is correct?**

**A. 6:25**

**B. 3:5**

**C. 9:25 (Answer)**

**D. 16:25**

**649**

**I. x2 + 9x + 20 = 0,**

**II. y2 + 5y + 6 = 0 to solve both the equations to find the values of x and y**** choose which one is correct?**

**A. If x < y (Answer)**

**B. If x > y**

**C. If x ≤ y**

**D. If x ≥ y**

**650**

**I. x2 – x – 42 = 0,**

**II. y2 – 17y + 72 = 0 to solve both the equations to find the values of x and y**** choose which one is correct?**

**A. If x < y (Answer)**

**B. If x > y**

**D. If x ≥ y**

**C. If x ≤ y**

**651**

**Find the quadratic equations whose roots are the reciprocals of the roots of 2×2 + 5x + 3 = 0**** choose which one is correct?**

**A. 3×2 + 5x – 2 = 0**

**B. 3×2 + 5x + 2 = 0 (Answer)**

**C. 3×2 – 5x + 2 = 0**

**D. 3×2 – 5x – 2 = 0**

**652**

**If a and b are the roots of the equation x2 – 9x + 20 = 0, find the value of a2 + b2 + ab**** choose which one is correct?**

**A. -21**

**B. 1**

**C. 61 (Answer)**

**D. 21**

**653**

**The arithmetic mean of the scores of a group of students in a test was 52. The brightest 20% of** **they secured a mean score of 80 and the dullest 25% a mean score of 31. The mean score of** **the remaining 55% is___________ choose which one is correct?**

**A. 45**

**B. 50**

**C. 51.4 approx. (Answer)**

**D. 54.6 approx.**

**654**

**The average age of a husband, wife and their child 3 years ago was 27 years and that of wife** **and the child 5 years ago was 20 years. The present age of the husband is___________ choose which one is correct?**

**A. 19 years (Answer)**

**B. 23 years**

**C. 28.5 years**

**D. 29.3 years**

**655**

**Sarfaraz obtained 76, 65, 82, 67 and 85 marks (out of 100) in English, Mathematics, Physics,** **Chemistry and Biology. What are his average marks choose which one is correct?**

**A. 65**

**B. 69**

**C. 72**

**D. None of these (Answer)**

**656**

**A total of 3000 chocolates were distributed among 120 boys and girls such that each boy** **received 2 chocolates and each girl received 3 chocolates. Find the respective number of boys** **and girls choose which one is correct?**

**A. 70, 50**

**B. 60, 60 (Answer)**

**C. 50, 70**

**D. 40, 80**

**657**

**What are Prime Numbers**** choose which one is correct?**

**A. Which can be divided by Odd Numbers**

**B. Which can be divided by Even Numbers**

**C. Which can be divided by Number 1 & by itself Number (Answer)**

**D. Which can be divided by any Number**

**658**

**Twelve inches equal to how many centimeters**** choose which one is correct?**

**A. 30.48 (Answer)**

**B. 29**

**C. 34.12**

**D. 24**

**659**

**Who is Called the Father of Calculus**** choose which one is correct?**

**A. Al-Khwarizmi**

**B. Aristotle**

**C. Herodotus**

**D. Isaac Newton (Answer)**

**670**

**1 inch is equal to__________**** choose which one is correct?**

**A. 2.4 cm**

**B. 2.5 cm**

**C. 2.54 cm (Answer)**

**D. None**

**671**

**If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then** **the average marks of all the students is:**

**A. 53.33**

**B. 54.68 (Answer)**

**C. 55**

**D. None of these**

**672**

**Masood purchased a plot for Rs. 8,000. He sells the plot to Aftab at a profit of 20%. Aftab in** **turn sells that plot to Zahid at a loss of 20%. The plot costs Zahid choose which one is correct?**

**A. Rs. 12,000**

**B. Rs. 10,000**

**C. Rs. 8670**

**D. Rs. 7680 (Answer)**