Anu sold an article for Rs. 480 at some profit. Had she sold it for Rs. 400. Then there would have been a loss equal to one-third of the initial profit. What was the cost price of the article?
A. Rs. 430
B. Rs. 450
C. Rs. 420
D. Rs. 425
Answer: Option C
Solution (By Examveda Team)
Loss = $$\frac{1}{3}$$ Profit$$\frac{{{\text{Loss}}}}{{{\text{Profit}}}} = \frac{1}{3}$$
Cost price = 480 - 3x = 400 + x
4x = 80
x = 20
Cost price = 400 + 20 = 420

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