Multiple choice

If the simple interest for 5 years is Rs. 77.50, find the simple interest for 4 years for the same principal and rate

  1. Rs. 124

  2. Rs. 15.5

  3. Rs. 387.5

  4. Rs. 62

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

Simple interest is directly proportional to time. If SI for 5 years is Rs. 77.50, then SI for 1 year = 77.50/5 = Rs. 15.50. Therefore, SI for 4 years = 4 × 15.50 = Rs. 62. Option A (Rs. 124) would be for 8 years, option B (Rs. 15.5) is for 1 year, and option C (Rs. 387.5) is incorrectly calculated.