Question

show that one and only one out of n ,(n+ 1 )and(n+ 2 ) is divisible by 3 where n is any positive integer.​

Answer 1

Step-by-step explanation:

In this case, (n+2) is divsible by 3 . In this case , (n +1) is divisible by 3.

Hence, one and only one out of n,( n +1) and (n+2) is divisible by 3.