Multiple choice

Amount invested by Alok double itself in 5 years at compound interest. Alok earn 3900 as interest in 10 years. If Alok doubles his investment after 5 years, then find the compound interest now Alok will receive at the end of 10 years?

  1. 9100

  2. 7800

  3. 5200

  4. 4200

  5. Cannot be determined.

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

The question is ambiguous - 'doubles his investment after 5 years' could mean reinvesting the accumulated amount or adding an equal principal. Without clarity on the compounding mechanism, a definitive answer cannot be calculated.