Question

In a 10 digit number 1330x558y2 is ÷ 88 then find x+y=?

Answer 1

Step-by-step explanation:

if we split 88 then we get 11 and 8

by applying the divisibility test of 11 and 8 we can find the value of x and y

taking 8y2 first . It is divisible by 8 if y=3

Now taking the whole number test for 11

add the even and odd places starting from very left

1+3+x+5+3=12+x

3+0+5+8+2=18

Add them we get 30+x

For this to be divisible by 11 x should be 3

So x+y=3+3=6