7. A shopkeeper buys 15 changes for Rs21 and sells them at 20 oranges – InterviewSolution

1.	7. A shopkeeper buys 15 changes for Rs21 and sells them at 20 oranges for Rs25. Find his gains or loss percentage.
Answer» Loss of 7 % approxStep-by-step EXPLANATION:C.P for 15 orange = 21 Rs.C.P for 1 Orange = 21/15 or 7/5 rupees.Thus C.P for 20 orange will be 7/520 or 28 RupeesS.P. for 20 Oranges= 25 RSAS C.P>S.P , there is a lossLoss: 28-25= 3Loss PERCENTAGE= 3/28 100 = 7 17/19%

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