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Question

# Match the following.

A
1331
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B
4
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C
8
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D
24
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Solution

## L.C.M of 12, 8 Multiples of 12 = 12, 24, 36, 48 ....... Multiples of 8 = 8, 16, 24, 32, 40.... As we can see the Least Common Multiple is 24. Similarly L.C.M of 1 and 8 is 8. H.C.F of 12, 8 Factors of 12= 1, 2, 3, 4, 6, 12 Factors of 8= 1, 2, 4, 8 ∴ H.C.F is 4 1331 is divisible by 11 Divisibility rule for 11 : If the difference of the sum of odd digits and the sum of even digits of the number is either 0 or a multiple of 11, then the number is divisible by 11. In 1331, sum of odd places is 1+3 and sum of even places is also 1+3. Their difference is 4-4 =0 . Hence 1331 is divisible by 11.

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