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Hassan
1.The smallest fraction, which each of 6/7, 5/14, 10/21 will divide exactly is___?
A. 30/7
B. 30/98
C. 60/147
D. 30/7
2.What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30?
A. 196
B. 630
C. 1260
D. 196
3.Which of the following fractions is the largest?
A. 8-Jul
B. 13/16
C. 31/40
D. 8-Jul
4.The H.C.F of two numbers is 23 and the other two factors of their L.C.M are 13 and 14. The larger of the two numbers is______?
A. 276
B. 299
C. 322
D. 276
5.The H.C.F of two numbers is 8. Which of the following can never be their L.C.M?
A. 24
B. 48
C. 56
D. 24
6.Product of two co-prime numbers is 117. Their L.C.M should be____?
A. 1
B. 117
C. equal to their H.C.F
D. 1
7.If the sum of two numbers is 55 and the H.C.F and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocal of the numbers is equal to___?
A. 55/601
B. 601/55
C. 11/120
D. 55/601
8.The L.C.M of two numbers is 495 and their H.C.F is 5. If the sum of the numbers is 10, then their difference is___?
A. 10
B. 46
C. 70
D. 10
9.The H.C.F of two numbers is 11 and their L.C.M is 7700. If one of the numbers is 275, then the other is___?
A. 279
B. 283
C. 308
D. 279
10.The H.C.F and L.C.M of two numbers are 84 and 21 respectively. If the ratio of the two numbers is 1:4, then the larger of the two numbers is____?
A. 12
B. 48
C. 84
D. 12
11.Three numbers are in the ratio 3:4:5 and their L.C.M is 2400. Their H.C.F is:
A. 40
B. 80
C. 120
D. 40
12.The L.C.M of two numbers is 48. The numbers are in the ratio 2:3. The sum of numbers is____?
A. 28
B. 32
C. 40
D. 28
13.Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is____?
A. 75
B. 81
C. 85
D. 75
14.The product of two numbers is 2028 and their H.C.F is 13. The number of such pairs is____?
A. 1
B. 2
C. 3
D. 1
15.The product of two numbers is 4107. If the H.C.F of these numbers is 37, then the greater number is___?
A. 101
B. 107
C. 111
D. 101
16.The sum of two numbers is 528 and their H.C.F is 33. The number of pairs of numbers satisfying the above conditions is____?
A. 4
B. 6
C. 8
D. 4
17.The ratio of numbers is 3:4 and their H.C.F is 4. Their L.C.M is___?
A. 12
B. 16
C. 24
D. 12
18.Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are____?
A. 4,8,12
B. 5, 10, 15
C. 10, 20, 30
D. 4,8,12
19.H.C.F of 3240, 3600 and a third number is 36 and their L.C.M is 24 * 35 * 52 * 72. The third number is__?
A. 22 * 35 * 72
B. 22 * 53 * 72
C. 25 * 52 * 72
D. 22 * 35 * 72
20.The G.C.D of 1.08, 0.36 and 0.9 is____?
A. 0.03
B. 0.9
C. 0.18
D. 0.03
21.Find the lowest common multiple of 24, 36 and 40.
A. 120
B. 240
C. 360
D. 120
22.Find the highest common factor of 36 and 84.
A. 4
B. 6
C. 12
D. 4
23.H.C.F of 4 * 27 * 3125, 8 * 9 * 25 * 7 and 16 * 81 * 5 * 11 * 49 is____?
A. 180
B. 360
C. 540
D. 180
24.1095/1168 when expressed in simplest form is:
A. 13/16
B. 15/16
C. 17/26
D. 13/16
25.Which of the following has most number of divisors?
A. 99
B. 101
C. 176
D. 99
26.252 can be expressed as a product of primes as___?
A. 2 * 2 * 3 * 3 * 7
B. 2 * 2 * 2 * 3 * 7
C. 3 * 3 * 3 * 3 * 7
D. 2 * 2 * 3 * 3 * 7
27.A drink vendor has 80 liters of Maaza, 144 liters of Pepsi and 368 liters of Sprite. He wants to pack them in cans, so that each can contains the same number of liters of a drink, and doesn’t want to mix any two drinks in a can. What is the least number of cans required?
A. 35
B. 37
C. 42
D. 35
28.A room is 6 meters 24 centimeters in length and 4 meters 32 centimeters in width. Find the least number of square tiles of equal size required to cover the entire floor of the room?
A. 110
B. 124
C. 96
D. 110
29.Find the greatest number that, while dividing 47, 215 and 365, gives the same remainder in each case?
A. 3
B. 4
C. 5
D. 3
30.Find the greatest number which, while dividing 19, 83 and 67, gives a remainder of 3 in each case?
A. 16
B. 17
C. 18
D. 16
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