Question Bank • QB_GA_079 MCQ • 1 Mark

Section 8: General Aptitude

Quantitative Aptitude

Subtopic: Ratios & Percentages

Question Statement:

If $A$ is $20\%$ more than $B$, by what percentage is $B$ less than $A$?

Options:

  • (A) $20\%$
  • (B) $16\frac{2}{3}\% \approx 16.67\%$
  • (C) $25\%$
  • (D) $15\%$

Answer Key:

B

Step-by-Step Solution & Explanation

Let $B = 100$. Then $A = 120$. Percentage by which $B$ is less than $A$: $\frac{A - B}{A} \times 100 = \frac{120 - 100}{120} \times 100 = \frac{20}{120} \times 100 = \frac{1}{6} \times 100 = 16.67\%$
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