# A vendor buys lemons at 25rs per dozen and sells them at the Rate of 5for 12rs.find his gain or loss per cent

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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

Therefore ,

Gain % = S.P - C.P/C.P*100

=12 - 10.416/10.416*100

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