# DBT JRF 2022 — Question 44

Exam: DBT JRF 2022 · Section: A · Topic: Aptitude › Percentages & Ratios · Difficulty: Medium

## Question

If 8% of x = 4% of y, then 20% of x is?

## Options

- **A.** 10% of y
- **B.** 16% of y
- **C.** 80% of y
- **D.** 40% of y

## Answer

Option A

## Explanation

Percentage relationship between x and y: Given: $8\% \text{ of } x = 4\% \text{ of } y$ $0.08x = 0.04y \Rightarrow y = 2x$ Now find 20% of x in terms of y: $20\% \text{ of } x = 0.2x = 0.1 \times (2x) = 0.1y = 10\% \text{ of } y$ Answer: 10% of y (Option 1).

Source: https://mypyqbuddy.com/questions/if-8-of-x-4-of-y-then-6a104cd5920734408bc0c709