If Rs. 64 Amount to Rs. 83.20 in 2 years, what will Rs. 86 amount to in 4 years at the same rate percent per annum? Options: A . &nbsp114.8 B . &nbsp86.70 C . &nbsp55.40 D . &nbsp51.60 E . &nbspNone of these

If Rs. 64 Amount to Rs. 83.20 in 2 years, what will Rs. 86 amount to in 4 years

Question

If Rs. 64 Amount to Rs. 83.20 in 2 years, what will Rs. 86 amount to in 4 years at the same rate percent per annum?

Answer: Option D
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P=Rs. 64, S.I. = Rs. (83.20 - 64) = Rs. 19.20, T = 2 years.

So, rate = ( 100 x 19.20 ) % = 15%
64 x 2

Now, P = Rs.86, R= 15%, T = 4 years.

S.I. = Rs ( 86 x 15 x 14 ) = Rs. 51.60
100

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