a dealer bought 80kg salt at Rs 4 per kg . he sells 50 kg at Rs 6 per kg and the remaining at Rs 4 per kg . find his gain and gain %
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Answer:
Cost price for 80 kg = 384
Let the selling price be x/kg.
So selling price for 80 kg = 80x
Since the shopkeeper has suffered a loss
Loss= cost price- selling price= 384-80x
Also, loss= the amount he received for 16 kg = 16x
So, 384-80x = 16x
By solving the equation,
X= 4
Hence, the selling price of rice per kg was Rs 4.
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