9. A trader marks his goods 40% above the cost price and gives a disco – InterviewSolution

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1.	9. A trader marks his goods 40% above the cost price and gives a discount of 20% on the markedFind his gain percent.
Answer» Let the C.P. be 100x.therefore, M.P. = 140xtherefore, S.P.= (100 - 20) x 140x = 112xtherefore, Profit= 12xtherefore profit%= (12x/100x)x 100 = 12%

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