if the price of a book is first decreased by 30% and then increased by 20%, then the net change in the price will be : Choose the correct choice from the following answers:
A) 10
B) 16
C) 37
D) 29
E) 22

Rationale: "explanation : let the original price be rs . 100 . decreased by 30 % = 70 then increased 20 % on rs 70 = 70 + 14 = 84 net change in price = 100 - 84 = 16 answer : b"
Answer: B