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The least number which should be added to 2497, so that the sum is exactly divisible by 5, 6, 4 and 3, is

3
13
23
33

Correct Answer: 23

Explanation:

LCM of 5, 6, 4 and 3 = 60
On dividing 2497 by 60, the remainder is 37.
∴ Number to be added = 60 - 37 = 23

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