If 86y5 is exactly divisible by 3 then the least value of y is ........

Quantitative Aptitude (CPO) Number System

If 86y5 is exactly divisible by 3, then the least value of y is:

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SSC CPO 10th Nov 2022 Shift 3

- To determine divisibility by 3, the sum of the digits should be divisible by 3.

- Consider 86y5. Sum the digits: 8 + 6 + y + 5 = 19 + y.

- Find the smallest y such that 19 + y is divisible by 3.

- Start testing with the smallest values to find the least y.

- If y = 0: 19 + 0 = 19. Not divisible by 3.

- If y = 1: 19 + 1 = 20. Not divisible by 3.

- If y = 2: 19 + 2 = 21. ? Divisible by 3.

The least value of y is 2.

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