If 2791 A is divisible by 9, supply the missing digit in place of ‘A – InterviewSolution

1.

If 2791 A is divisible by 9, supply the missing digit in place of ‘A’.

Answer»

If the sum of the digits of a number is divisible by 9, then the number is divisible by 9.

∴ 2791A = 2 + 7 + 9 + 1 + A = 9 x 3

⇒ 19 + A = 9 x 3 = 27

⇒ A = 27 – 19 = 8

∴ A = 8

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