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%
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