Question 68

A retailer bought 22 kg of rice at ₹35 per kg and 13 kg of rice at ₹30 per kg. What profit did he get when he mixed the two varieties together and sold it at ₹40 per kg? (correct to the nearest integer)

Solution

A retailer bought 22 kg of rice at ₹35 per kg and 13 kg of rice at ₹30 per kg.

Total cost price = $$22\times35+13\times30$$

= 770+390

= 1160

Selling price of 1 kg rice = ₹40

Total selling price = $$(22+13)\times40$$

= $$35\times40$$

= 1400

Profit = $$\frac{\left(1400-1160\right)}{1160}\times\ 100$$

= $$\frac{240}{1160}\times\ 100$$

= 20.68%

= 21% (approx.)

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