On dividing a number by 7, we get 3 as quotient and 0 as remainder. On dividing the same number by 3, what will be the remainder? Choose the correct choice from the following.
A) 1
B) 2
C) 3
D) 0
E) 4

Rationale: "number = 7 * 3 + 0 = 21 3 ) 21 ( 7 21 - - - - - - - - 0 required number = 0 . answer : d"
Answer: D