Rectangular land

Due to the new road, the longer dimension of the rectangular plot had to be shortened by 4 percent, and the shorter dimension shrunk by 10 percent. By how much percent has the area of land decreased?

Correct answer:

p =  13.6 %

Step-by-step explanation:

q1=100%4%=11004=0.96 q2=100%10%=110010=0.9  S = a b r=q1 q2=0.96 0.9=125108=0.864 S1 = r S  p=100 (1r)=100 (10.864)=13.6%

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