Question

For what value of digit x, is :

3×2 divisible by 11 ?

Answer 1

Sum of the digit in even place = x

and sum of the digits in odd place = 3 + 2 = 5

Difference of the sum of the digits in even places and in odd places = x – 5

3×2 is a multiple of 11

=> x – 5 = 0, 11, 22,

=> x = 5, 16, 27,

Since, x is a digit x = 5