Exams › SSC CGL (Prelims) › General
An amount is said to triple in 6 years with compound interest. How many years will it take for the amount to become 27 times its original value?
- 18
- 19
- 20
- 21
Correct answer: 18
Solution
If the amount triples in 6 years, then in each 6-year period it is multiplied by 3. Since $27=3^3$, it needs 3 such periods. Therefore, total time = $3\times 6=18$ years.
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