hari bought 20kg of rice at ₹36 per kg and 25kg of rice at ₹32 per kg he mixed the two varieties and sold the mixture at ₹38per kg find his gain percent in the whole transaction
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cost of 1 kg rice (first type) = Rs. 18
cost of 20 kg rice(first type) = 18*20 = Rs.360
cost of 1 kg rice (second type) = Rs. 16
cost of 25 kg rice(second type) = 16*25 = Rs. 400
total CP = Rs. 760
total quantity of rice purchased = 20 + 25 = 45 kg
SP of 1 kg rice = Rs. 19
SP of 45 kg's of rice = 19*45 = Rs. 855
total CP = Rs.760
total SP = Rs. 855
as SP > CP, therefore gain occurs.
gain = SP - CP = 855 - 760 = Rs. 95
gain % = (gain * 100/ CP) % = (95 * 100 / 760) % = 12.5 %
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