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  1. The compound interest on a sum of Rs. 5000 at 8% per annum for 9 months when interest is compound quarterly is :
    1. Rs. 300
    2. Rs. 300.12
    3. Rs. 306.04
    4. Rs. 308
Correct Option: C

When interest is compound quarterly ,

Rate of interest =
8
= 2% per quarter , Time = 3 quarters
4

Here , Principal ( P ) = ₹ 5,000 , Compound Interest ( CI ) = ?
We can find required answer with the help of given formula ,
C.I. = P 1 +
R
T − 1
100

C.I. = 5000 1 +
2
3 − 1
100

C.I. = 5000[(1.02)3 - 1]
C.I. = 5000 (1.061208 – 1)
C.I. = 5000 × 0.061208 = Rs. 306.04



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