Question

In 66784 *, replace * by the smallest digit to make it divisible by 11

Answer 1

sum of the digits in odd place = 6+7+4+ = 17

sum of the digits in even place = 6+8+* = 14+*

17-14+* = 3+*

it is 8 which i divisible by 11

11 = 3+*

* = 8

so the smallest digit is 8

Answer 2

$\large{\underline{\underline{\bf{AnswEr}}}}$

sum of the digits in odd place =6+7+4+*=17

sum of the digit in even place = 6+8+*=14+*

17-14+*=3+*

it is 8 which is divisible by 11

11=3+*

*=8

so the smallest digit 8