If selling price is doubled, the profit triples. Find the profit percent ?

Question

If selling price is doubled, the profit triples. Find the profit percent ?

A. 400%

B. 300%

C. 200%

D. 100%

Answer: D. 100%

Solution:

Let the cost price be Rs.100 and selling price be Rs.x, Then

The profit is (x – 100)

Now the S.P is doubled, then the new S.P is 2x

New profit is (2x – 100)

Now as per the given condition;

=> 3(x – 100) = 2x – 100

By solving, we get
x = 200

Then the Profit percent = (200 – 100) / 100 = 100

Hence, the profit percentage is 100%

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