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

Show that 1 and only 1 out of n, (n+1)and (n+2) is divisible by 3 , wh

1.	Show that 1 and only 1 out of n, (n+1)and (n+2) is divisible by 3 , where n is any positive integer
Answer» It is given in rs agarwal pg 8