Multiple choice

A certain sum of money becomes triple of itself in 26 years at simple interest. In how many years it will become five times of itself ?

  1. 64 years

  2. 52 years

  3. 56 years

  4. 60 years
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Tripling means gaining 2x interest in 26 years, so 1x interest takes 13 years. Five times means 4x interest, requiring 4 × 13 = 52 years.

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