tonytlan06 tonytlan06

14-11-2018
Mathematics

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After a drop of 25% in price, by what percentage must the price be increased to restore the original price?

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wghitustl wghitustl

14-11-2018

assume the original price: a

After the drop,the price is (1-25%)a=0.75a

to restore the price 0.75a*(1+x)=a

then a =4/3-1=1/3=33.33%

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