Q1: What will be remainder when 17200 is divided by 18 ?
A 17
B 1
C 2
D 16
ANS:C - 1
When n is even. (xn - an) is completely divisibly by (x + a)
(17200 - 1200) is completely divisible by (17 + 1), i.e., 18.
(17200 - 1) is completely divisible by 18.
On dividing 17200 by 18, we get 1 as remainder.
(17200 - 1) is completely divisible by 18.