Question

A TV set was sold at gain of 25%. Had it been for Rs 500 more the gain would have been 30%. Find the cost price of TV set.​

Answer 1

Answer:

rupees 8000

Step-by-step explanation:

Let the C.P of the TV = x when x is in Rs.

∴ 25% profit = x×10025=4x and the S.P. = x+4x=45x.

In the second case, by the given condition, the profit is 25% off 45x

= 45x×10025=165x.

∴ The difference in profits = 165x−4x=16x.

Now 5% of the C.P. + Rs. 100= x×1005+100=20x+100.

So, by the given condition, we have

16x=20x+100

⇒16x−20x=100

⇒80x=100

⇒x= Rs. 8000

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