If the price of a TV is first decreased by 20% and then increased by 55%, then the net change in the price will be :
Select the correct option.
A) 4 % increase	B) 24 % increase	C) 10 % decrease	D) 6 % increase	E) none of these

Rationale: "explanation : solution : let the original price be rs . 100 . new final price = 155 % of ( 80 % of 100 ) = rs . 155 / 100 * 80 / 100 * 100 = rs . 124 . . ' . increase = 24 % answer : b"
Answer: B