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 :	Options
A) 10 B) 16 C) 37 D) 29 E) 22
Explanation:   Let the original price be Rs. 100.   Decreased by 30% = 70   Then increased 20% on Rs 70 = 70 + 14= 
<gadget id="calculator">70 + 14</gadget>
<output>84</output>
84   Net change in price= 100 - 84= 
<gadget id="calculator">100 - 84</gadget>
<output>16</output>
16   Answer : 16
<result>B</result>
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 :