Percent change

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

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 11.25 0.91=225%=12.5%



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