Question

(iii) Is 5081 divisible by 11?
(iii) Is 9856 divisible by 11?
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Answer 1

The divisibility criteria of 11 is

the sum of digits in odd places = the sum of digits in even places

So

in 5081 , 5+8 is not equal to 1+0 it is not divisible by 11

in 9856 , 9+5 = 8+6 so it is divisible by 11