if the price of a book is first decreased by 15% and then increased by 10%, then the net change in the price will be : Choose the correct choice from the following
A) 10 B) 388 C) 6.5 D) 29 E) 22

Rationale: "explanation : let the original price be rs . 100 . decreased by 15 % = 85 then increased 10 % on rs 85 = 85 + 8.5 = 93.5 net change in price = 100 - 93.5 = 6.5 answer : c"
Answer: C