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A towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. The percentage of decrease in area is:

Option :

Answer:Option 1

Explanation:

Solution:
Letoriginallength=xandoriginalbreadth=yDecreaseinarea=xy(80100x×90100y)=(xy1825xy)=725xyDecrease%=(725xy×1xy×100)%=28%



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