The price of copper increased by 30% in the month of Feb. The price decreased by 20% in March. The price after these changes was?

A. 20% higher than original price

B. 4% higher than original price

C. 5%lower than the original price

D. Same as the original price

Answer: Option D

Solution(By Examveda Team)

Let Initial Price was 100.
Price of Copper after 30% increment = 100 + 30% of 100 = 130.
Price of Copper in March = 130 - 20% of 130 = 104.
After these changes price = 104.
Change in price = 104 - 100 = 4
%change = (4 * 100)/100 = 4%.

Graphic Change Method:

100 ==30% increased ==> 130 ==20% decreased ==> 104.
% Change = 4%