Multiple choice

Maneesh invests some money in three different schemes for 4 years, 8 years and 12 years at 10%, 15% and 20% Simple Interest respectively. At the completion of each scheme, he gets the same interest. The ratio of his investments is

  1. 6 : 2 : 1

  2. 5 : 2 : 1

  3. 5 : 2 : 3

  4. 5 : 2 : 7

  5. None of these
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For Simple Interest, I = P × R × T ÷ 100. Since interest is equal: P1 × 10 × 4 = P2 × 15 × 8 = P3 × 20 × 12. This gives: 40P1 = 120P2 = 240P3. Dividing by 40: P1 = 3P2 = 6P3. So P1 : P2 : P3 = 6 : 2 : 1, which matches option A.

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