Mathematics MCQs

Page No. 13

The least square number which divides 8, 12 and 18 is________?


a100

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b121

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c64

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d144

✓


View Answer 144

The least number which when divided by 8, 12 and 16, leave in each remainder 3, is_______?


a71

✖


b70

✖


c69

✖


d51

✓


View Answer 51

The least number which when add 3 to it, completely divided 8, 12 and 18 is_______?


a71

✖


b70

✖


c69

✓


d68

✖


View Answer 69

The least number which when diminished by 7 is divisible by 21, 28, 36 and 45 is________?


a1267

✓


b1265

✖


c1261

✖


d68

✖


View Answer 1267

Four bells begin to toll together respectively at the intervals of 8, 10, 12 and 16 seconds. After how many seconds will they toll together again?


a246 seconds

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b242 seconds

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c240 seconds

✓


d243 seconds

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View Answer 240 seconds

The product of two digits number is 2160 and their HCF is 12. The numbers are________?


a(36,60)

✓


b(12,180)

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c(96,25)

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d(72,30)

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View Answer (36,60)

The greatest number of five digits which is divisible by 32, 36, 40, 42 and 48 is_________?


a90730

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b90725

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c90715

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d90720

✓


View Answer 90720

The least number of four digits which is divisible by 4, 6, 8 and 10 is_________?


a1080

✓


b1085

✖


c1075

✖


d1095

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View Answer 1080

The greatest number of four digits that have 144 for their HCF is___________?


a9930

✖


b9903

✖


c9935

✖


d9936

✓


View Answer 9936

The least number of five digits that have 144 their HCF is__________?


a10085

✖


b10080

✓


c10075

✖


d10070

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View Answer 10080

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