A sum of money invested at compound interest amounts to Rs 800 in 3 years and to Rs 840 in 4 years T...........

Quantitative Aptitude ( CCS) Compound Interest

A sum of money invested at compound interest amounts to Rs. 800 in 3 years and to Rs. 840 in 4 years. The rate of interest per annum is

S.I. on Rs.800 for 1 year

=Rs[840 - 800] = Rs.40

Rate

=(100x40/800x1)% = 5%

Hence, opiton 4 is the correct answer.

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