Question 114
If by selling 20 apples the shopkeeper gains the cost price of 4 apples, find the gain%.
Solution
SP of 20 apples - CP of 20 apples = CP of 4 apples
SP of 20 apples = CP of 24 apples
SP of 1 apple/CP of 1 apple = 24/20 = 1.2
Profit % = (1.2-1)*100 = 20%
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