Explanation:
To find the shopkeeper's gain percentage, we need to calculate the effective cost price per kg and the selling price per kg, then use the formula for gain percentage.
Step by Step Solution:
Step 1
The shopkeeper claims to sell 1 kg of salt for ₹25.
Step 2
However, he removes 200 gm from each kg. So, he is actually selling 800 gm of salt for ₹25.
Step 3
To find the cost price of 800 gm of salt, we use the proportion: Cost price of 1 kg (1000 gm) = ₹25 Cost price of 800 gm = (800/1000) * 25 = ₹20
Step 4
The shopkeeper sells 800 gm of salt for ₹25, while the cost price of 800 gm of salt is ₹20.
Step 5
The gain is given by: Gain = Selling Price - Cost Price = ₹25 - ₹20 = ₹5 Gain Percentage = (Gain / Cost Price) * 100 = (5 / 20) * 100 = 25%
Final Answer:
The shopkeeper's gain percentage is 25%.
Option (b) is the correct answer.
Study Notes
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