Profit and loss

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A costs twice as much as B. A is sold at a loss of 10% and B is sold at 7/5th of its price. If selling price of A is Rs. 1200 more than selling price of B, what is the cost price of A?

2400

3000

Can't be determined

6000

Explanation:

Let the cost of B be 100x ( for the sake of ease in computation)
So cost of A becomes 200x
Now SP of A becomes 90% of 200x = 180x
And SP of B becomes 100x × 7/5 = 140x
The difference between both of them is 40x
Since this difference corresponds to Rs. 1200, 40x = 1200 or x = 30
There cost of A becomes 200 × 30 = Rs. 6000

By: Amit Kumar

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