Question

Jldi krke do??
urgent

Answer 1

hope this helps u..

Answer 2

Answer:

Exactly one of n, n+2, and n+4 is divisible by 3.

Step-by-step explanation:

Case 1: If n is divisible by 3, then n=3x.

$n+2=3x+2$

It can not be divisible by 3.

$n+4=3x+4$

It can not be divisible by 3.

Case 2: If n+2 is divisible by 3, then n+2=3x.

$n=3x-2$

It can not be divisible by 3.

$n+4=3x+2$

It can not be divisible by 3.

Case 3: If n+4 is divisible by 3, then n+4=3x.

$n=3x-4$

It can not be divisible by 3.

$n+2=3x-2$

It can not be divisible by 3.

Hence proved that exactly one of n, n+2, and n+4 is divisible by 3.