Question

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

Answer 1

Answer: 6

Step-by-step explanation:

If the number is divisible by 80, last number should 0 as 80 ends with 0. Then 653x should be divisible by 8

for that we need to find x such that 53x is divisible by 8

When 530 is divided by 8 , it leaves a remainder of 2. So the number next to 530 which is divisible by 8 is 536 as 8-2=6.

So x=6 and y = 0

x+y=6