Question

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

Answer 1

Correct option is B. $$100$$%

Let the C.P be $$\ Rs.100$$ and S.P be $$\ Rs.x$$, Then

The profit is $$\left(x-100\right)$$

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

New profit is $$\left(2x-100\right)$$

Now as per the given condition;

$$\Rightarrow\, 3\left(x-100\right) = 2x-100$$

By solving, we get

$$3x-300=2x-100$$

$$\Rightarrow\,x=-100+300=200$$

Then the Profit percent $$=200-100\%= 100\%$$

Hence the profit percentage is $$100\%$$