Question
A shopkeeper mixes 40 kg sugar worth Rs.15 per
kg with 160 kg sugar worth Rs. 25 per kg. At what rate should he sell the mixture per kg to gain a profit of 25%?Solution
Cost of 40 kg sugar = Rs.600 Cost of 160 kg sugar = Rs.4,000 Total cost of 200 kg sugar = Rs. 4,600 Cost price of 1 kg sugar = `4600/200` = Rs.23 per kg S.P. = `(23xx125)/100` = Rs. 28.75
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