Question

Divisibility rule of 11

Answer 1

Divisibility rule of 11 is -- If the difference between the sum of digits at odd places and the sum of digits at even places is equal to 0 or a multiple of 11.

ex - 1 2 3 4 3 7 5 6

Sum of odd term = 6+7+4+2 = 19

Sum of odd term = 5+3+3+1 = 12

Difference = 19 -12 =7

So number is not divided by 11 .


Example :
i) 292215
ii) 760672

Explanation :
i) 292215
By rule, (9+2+5) - (2+2+1) = 11

ii) 760672
By rule, (6+6+2) - (7+0+7) = 0

Both the numbers can be divided by 11.