A sum of Rs 343 becomes 512 in 3 years at C I Find the rate of interest ........

Quantitative Aptitude ( CCS) Compound Interest

A sum of Rs 343 becomes 512 in 3 years at C.I. Find the rate of interest.

14 (2/7) %

12.5 %

8 (2/3) %

16 (2/3) %

Sum=353; Amount=512
as many year, put that many root i.e
cuberoot(343): cuberoot(512)
7:8
rate=(8-7)/7 *100 =14 (2/7)%

Hence, option 1 is the correct answer.

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