Question
The simple interest on a certain sum of money at the rate of 5% p.a. for 8 years is RS. 840. At what rate of interest the same amount of interest can be received on the same sum after 5 years?
Answer: Option B
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S.I = Rs. 840, R = 5%, T = 8 years.
Principle = Rs. ( 100 x 840 ) = Rs. 2100
5 x 8
Now, P = Rs. 2100, S.I. = Rs. 840, T = 5 years.
Rate = ( 100 x 840 )% = 8%
2100 x 5
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