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Question

Hari bought 20 kg of rice at Rs 18 per kg and 25 kg of rice at Rs 16 per kg. He mixed the two varieties and sold the mixture at Rs 19 per kg. Find his gain percent in the whole transaction.


Solution

According to the question, we have

Cost for 20 kg of rice @ Rs. 18 per kg =20×18=Rs. 360

Cost for 25 kg of rice @ Rs. 16 per kg =25×16=Rs. 400

Total CP =360+400=Rs. 760

Also, total quantity of rice =20+25=45 kg

Selling price of rice =Rs. 19 per kg

  SP =45×19=Rs. 855

Since SP>CP, there is a gain.

 Now, Gain =855760=Rs. 95

Gain %=GainCP×100%

=95760×100%=252

=1212%


Mathematics
RS Aggarwal (2016)
Standard VIII

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