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?
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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.
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