Question

A person sold an electronic watch at Rs. 96 in such a way that his percentage profit is same as the cost price of the watch . If he sells it at twice the percentage profit of its previous percentage then find the new selling price

Answer 1

Let the cost price of watch be $C$

Then according to question $C\times \frac{100+C}{100}=96$

Solving we get $C=60$

So new profit percent = $120$%

So new selling price = $60\times \frac{220}{100}=132$