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

Given, 2791A a number divisible by 9

Need to find out A

⇒ Sum of the digits of a number 2791A must be divisible by 9

⇒ 2 + 7 + 9 + 1 + A = 19 + A must be divisible by 9

Substitute A value from 0 to 9 by trial error method

We get

A = 8 as 27918 is divisible by 9.

19 + 8 = 27 is divisible by 9.

Hence, A is 8.