Question
A shopkeeper sells an article for Rs 220 and
earns thrice the profit that he would have earned on selling this article for Rs 150. Find the C.P of this article (in Rs).Solution
ATQ, the shopkeeper earns the thrice profit that he would have earned had he sold it for Rs 150.
Profit% = 3 (profit %)
S.P - C.P = 3 x (S.P - C.P)
Let C.P = x
220 - x = 3 x (150 - x)
220 - x = 450 - 3x
2x= 450 - 220
x= 115
Hence, the cost price of the article = 115
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