A shopkeeper has a fault of 100 g in a 3 kg weight. He sold 3 kg of potatoes to Charu using the same faulty weight for ₹46. The cost price of the potatoes for the seller was ₹12 per kg. How much profit (in ₹) did he earn on the potatoes?

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Accepted Answer

Step 1: Understand the faulty weight
The shopkeeper's 3 kg weight is actually 2.9 kg (3 kg - 0.1 kg).

Step 2: Calculate the actual quantity of potatoes sold
When the shopkeeper sells 3 kg using the faulty weight, he actually gives 2.9 kg of potatoes.

Step 3: Calculate the cost price of the potatoes sold
Cost price per kg = ₹12
Cost price for 2.9 kg = 2.9 × 12 = ₹34.8

Step 4: Calculate the selling price
Selling price = ₹46

Step 5: Calculate the profit
Profit = Selling price - Cost price = 46 - 34.8 = ₹11.2

Therefore, the shopkeeper earned a profit of ₹11.2.

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