Question

Test of Divisibility by 11 With Example.

Answer 1

Test of Divisibility by 11 —

Rule : If the sum of digits at odd and even places are equal or differ by a number divisible by 11, then the number is also divisible by 11.

For Example : $3245682$

$\mathrm{S}_1=3+4+6+2=15$ and

$\mathrm{S}_2=2+5+8=15$,

As $S_1=S_2$, The number is divisible by 11 .