A shopkeeper bought 11 hair clips for rupees 10 and sold 10 for rupees – InterviewSolution

1.	A shopkeeper bought 11 hair clips for rupees 10 and sold 10 for rupees 11 find his gain or last percent?
Answer» CP=10/11 SP=11/10so gain percent=(11/10-10/11)/(10/11)=(121-100)/(10×10)=21/100=21%

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