A book listed at Rs. $250$ is sold for Rs. $200$. The discount percent is

A book listed at Rs. $250$ is sold for Rs. $200$. The discount percent is
  1. $15\%$
  2. $20\%$
  3. $25\%$
  4. $30\%$

Solution

Discount $= 250 - 200 = 50$. Discount\% $= \dfrac{50}{250} \times 100\% = 20\%$ (always taken on MP).

Asked in: IMO

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