If the length of a rectangle is increased by 120% and its width is decreased by 20% , What happens to the area of the rectangle?
A
It decreases by 4%
B
It remains the same
C
It increases by 24%
D
It increase by 76%
Correct Answer: It increase by 76%
Answer : P + Q + P×Q100 = 120 + ( - 20) + 120×20100 = 120 - 20 - 120×20100 = 100 - 24 = 76 ⸫ It increases by 76%