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The cp of an article 4/5 of its sp find its gain or loss percent​

Answer»

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Answer let, the s.p of an article=100/-

4/5th of s.p = 4/5*100 = 80/-

% LOSS= cp-sp/cp * 100

100–28= x-80/x *100

by solving you will get x= 8000/27 which can be further simplified as 1000/9

i.e cp= x = 1000/9

now, sp = 6/5 * 100 = 120/-

%p= sp-cp/cp * 100

%p= 120 - 8000/27 / 8000/27 * 100

solving above equation

%p = 8%


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