Mathematics MCQs

Page No. 10

The L.C.M of two numbers is 48. The numbers are in the ratio 2:3. The sum of numbers is__________?


a28

✖


b32

✖


c40

✓


d64

✖


View Answer 40

Three numbers are in the ratio 3:4:5 and their L.C.M is 2400. Their H.C.F is:


a40

✓


b80

✖


c120

✖


d200

✖


View Answer 40

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____________?


a12

✖


b48

✖


c84

✓


d108

✖


View Answer 84

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__________?


a279

✖


b283

✖


c308

✓


d318

✖


View Answer 308

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__________?


a10

✓


b46

✖


c70

✖


d90

✖


View Answer 10

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___________?


a55/601

✖


b601/55

✖


c11/120

✓


d120/11

✖


View Answer 11/120

Product of two co-prime numbers is 117. Their L.C.M should be__________?


a1

✖


b117

✓


cequal to their H.C.F

✖


dCannot be calculated

✖


View Answer 117

The H.C.F of two numbers is 8. Which of the following can never be their L.C.M?


a24

✖


b48

✖


c56

✖


d60

✓


View Answer 60

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___________?


a276

✖


b299

✖


c322

✓


d345

✖


View Answer 322

Which of the following fractions is the largest?


a7/8

✓


b13/16

✖


c31/40

✖


d63/80

✖


View Answer 7/8

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