A trader sells a watch for Rs. $720$, suffering a loss of $10\%$. To gain $5\%$, he should sell it for

A trader sells a watch for Rs. $720$, suffering a loss of $10\%$. To gain $5\%$, he should sell it for
  1. Rs. $760$
  2. Rs. $800$
  3. Rs. $820$
  4. Rs. $840$

Solution

$\text{CP} = \dfrac{720 \times 100}{90} = 800$. New SP $= 800 \times 1.05 = 840$.

Asked in: IMO

Practice more COMPARING QUANTITIES questions on Aicharya