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If m and n are integers divisible by 5, which of the following is not necessarily true ?
Answer & Solution
Correct Answer:
Option
A
Take m = 15 and n = 20
Then, each one of m and n is divisible by 5
But (m + n) is not divisible by 10
Hence, (m + n) is divisible by 10 is not true.
Then, each one of m and n is divisible by 5
But (m + n) is not divisible by 10
Hence, (m + n) is divisible by 10 is not true.
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