If Prerna’s marks are $20\%$ less than Vinita’s marks, then Vinita’s marks are what percent more than Prerna’s?

Question

If Prerna’s marks are $20\%$ less than Vinita’s marks, then Vinita’s marks are what percent more than Prerna’s?

Option A

20%

Option B

22.5%

Option C — Correct answer

25%

Correct choice.

Option D

30%

Explanation

If one value is $20\%$ less, the reverse increase is $\frac{20}{100-20}\times100=25\%$.

Chapter Mock 3: Percentage