Question

231____231 is exactly divisible by 9.Find the missing digit?

Answer 1

Step-by-step explanation:

According to divisibility rule of 9

when the sum.of digits is completely divisible by 9 then the entire number will be divisible by 9

the given number is 231_231

aum of the digits 2+3+1+2+3+1 = 12

but 12 is not divisble

the next nearest number divisible by 9 is 18

so if we add 6 to the 12 we get total 18

so the missing number is.....6

2316231/9 = 257359

which is divisible