Answers

2014-11-06T02:23:21+05:30
In first case the cost price for each lemons is 25/12 = ₹2.08 In the second case the selling price for each lemon is 12/5 = ₹2.4 That implies gain for each lemon is is selling price -cost price is 2.4-2.08 =₹0.32 Then gain% is (S.P -C.P)/(C.P) * 100 = 0.32/2.08 =0.15385 *100 = 15.385%
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2014-11-06T09:17:37+05:30
A vendor buys lemons at 25rs per dozen and sells them at the Rate of 5for 12rs.find his gain or loss per cent?Solution :
            cost price  of 12 lemons ( in  Rupees) = 25
             therefore , cost price of one lemon(in Rupees) = 25 / 12
                 hence cost price of 5 lemons = 5*25/12
                                                             =125/12
                                                             =10.416
           Selling price of 5 lemons (in Rupees) =  12
           
Since the S.P of 5 lemons is more than C.P. hence the vendor has gain.
Therefore ,
Gain %  =  S.P - C.P/C.P*100
             =12 - 10.416/10.416*100
       Gain %     = 15.2

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