Question

If x and y are the two digits of the number 653xy such that this number is divisible by 80 then x+y is

Answer 1

You have to check whether the no. Is divisible by 16 and 5.. A no can only be divisible by 5 if it ends with 5,0 A no can only be divisible by 16 if last four digits are divisible by 16 Hence last digit that is y in this case is 0. Now x can only be even..value of x is 6 Hence x+y=6