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Question

A man sells a TV at a profit of 25% of the cost. Had he sold it at a profit of 25% of the selling price his profit would have increased by 5% of the cost price plus Rs. 100. Find the cost of the TV?

A
Rs. 6000
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B
Rs. 8000
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C
Rs. 10000
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D
Rs. 7500
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Solution

The correct option is B Rs. 8000
Let the C.P of the TV = x when x is in Rs.
25% profit = x×25100=x4 and the S.P. = x+x4=5x4.
In the second case, by the given condition, the profit is 25% of 5x4
= 5x4×25100=5x16.
The difference in profits = 5x16x4=x16.
Now 5% of the C.P. + Rs. 100= x×5100+100=x20+100.
So, by the given condition, we have
x16=x20+100
x16x20=100
x80=100
x= Rs. 8000
So,the cost price of the TV = Rs. 8000
Ans- Option B.

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