1. x is 5 times longer than y. The percentage by which y is less than x is :
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By: anil on 05 May 2019 01.49 am
It is given that x is 5 times longer than y, => $$x=5y$$ => $$frac{x}{y}=frac{5}{1}$$ Let $$x=5$$ and $$y=1$$ => Percentage by which y is less than x = $$frac{x-y}{x} imes 100$$ = $$frac{5-1}{5} imes 100$$ = $$4 imes 20=80\%$$ => Ans - (C)
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