1.  On dividing a number by 357, we get 39 as remainder. On dividing the same number 17, what will be the remainder ?
A. 0
B. 3
C. 5
D. 11

Answer: Option C

Explanation:

Let X be the number and Y be the quotient. Then,

X = 357 x Y + 39

= (17 x 21 x Y) + (17 x 2) + 5

= 17 x (21Y + 2) + 5)

Required remainder = 5.