Question

Check whether 25110 is divisible by 45.​

Answer 1

Answer:

First we have to break 45 into factors 5 and 9 and

Now, we have to check simultaneously both the conditions of divisibility by 5 and 9

(i) for divisible by 5, The last digit should either be 0 or 5

(ii) for divisible by 9, the sum of all digits must be divisible by 9

So, as we can see (i) is satisfying 25110

and 2+5+1+1+0=9 hence,(ii) is also satisfying 25110

Therefore 25110 is divisible by 45.