Percent change

The length of a rectangle is increased by 25%, and the width is decreased by 10%. By what percent is the area of the rectangle larger than the area of the original rectangle?

Correct answer:

p =  12.5 %

Step-by-step explanation:

q1=1+25/100=45=1.25 q2=110/100=109=0.9  S1 = ab S2 = (a q1)   (b q2)  p = 100   S1S2S1  p = 100    ab(a q1)   (b q2)  ab  p=100 1q1 q21=100 145 1091=225%=12.5%



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