Multiple choice general knowledge math & puzzles

What will be the ratio of simple interest earned by certain amount at the same rate of interest for 6 years and that for 9 years?

  1. 4:5

  2. 3:4

  3. 2:3

  4. Data inadequate

  5. None of these

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Simple Interest (SI) = (P * R * T) / 100. For the same P and R, the ratio of SI for 6 years and 9 years is simply the ratio of the times: 6:9. Simplifying 6:9 gives 2:3.