The list price of an article is Rs.70. A customer pays Rs.61.74 for it. He was given two successive discounts, one of them being 10%. The other discount is? Pick one
A) 8 %
B) 7 %
C) 10 %
D) 2 %
E) 4 %

Rationale: "explanation : 70 * ( 90 / 100 ) * ( ( 100 - x ) / 100 ) = 61.74 x = 2 % option d"
Answer: D