A trader sells his goods at 20 profit Had he bought it at 10 more and sold it for Rs 70 m...........

Quant (SSC) Profit and loss

A trader sells his goods at 20% profit. Had he bought it at 10% more and sold it for Rs. 70 more, he would have earned a profit of 25%. Find the cost price of the goods.

200

800

400

600

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Explanation:

Let the cost price be Rs. 100.
SP at 20% profit = Rs. 120
CP on 10% more = Rs. 110
∴ SP on 25% profit = 110 x 125 /100 = Rs. 137.5
Difference of selling price = 137.5 – 120 = Rs. 17.5
Now, 17.5 : 100 : : 70 : x
∴ x = 100 x 70 /17.5 = Rs. 400