The list price of an article is Rs.67. A customer pays Rs.56.16 for it. He was given two successive discounts, one of them being 10%. The other discount is?
Choices
A) 3.86 %	B) 4.86 %	C) 5.86 %	D) 6.86 %	E) 7.86 %

Rationale: 67 * ( 90 / 100 ) * ( ( 100 - x ) / 100 ) = 56.16 x = 6.86 % answer : d
Answer: D