If m and n are integers divisible by 5, which of the following is not necessarily true ?
A. m + n is divisible by 10
B. m - n is divisible by 5
C. m2 - n2 is divisible by 25
D. None of these
Answer: Option A
Solution (By Examveda Team)
Take m = 15 and n = 20Then, 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.
This Question Belongs to Arithmetic Ability >> Number System
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