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in Number System by (30.8k points)
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If 37y4 is exactly divisible by 9, then the least value of y is 

A.

B.

C.

D. 4

1 Answer

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by (31.2k points)
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Best answer

We know that if sum of digits of a number is divisible by 9, then the number is divisible by 9. 

Here, 

3 + 7 + y + 4 = multiple of 9 

y + 14 = 0, 9, 18, … 

Hence, 

y = 4 

∴ the least value of y is 3

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