saqib jan
saqib jan
6 years ago

The compound interest on Rs. 8000 at 15% P.a for 2 years 4 months, compounded annually is?

A. 2980

B. 3091

C. 3109

D. 3100

Answer: Option C


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  1. Saqib Jan
    Saqib Jan :
    6 years ago

    P(1+r/100)^n
    p= initial amount
    r= rate of interest
    n= period of years
    s= sum after 2 years & 4 months
    I= amount of interest
    solve:
    s = 8000(1+15/100)^2(4/12)
    s = 8000(1+15/100)^2 x (1+1/3 x 15/100)
    s = 8000(1+15/100)^2 x 21/20
    s= 10580 x 1.05
    s= 11109
    I = s - p ==> 11109 - 8000
    i= 3109

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