When posistive integer h is divided by 10, the remainder is 6. When the positive integer k is divided by 10, the remainder is 8. What is the remainder when h + k is divided by 10?
tiburtius | Certified Educator
When `h` is divided by 10, the remainder is 6, hence we can write
Similarly we can write
So we get
Hence when we divide `h+k` by 10 the remainder is 4.