Kamal took Rs. 6800 as a loan which along with interest is to be repaid in two equal annual installment. If the rate of interest is $$12\frac{1}{2}$$ % compounded annually, then the value of each installment is = ?
A. Rs. 8100
B. Rs. 4150
C. Rs. 4050
D. Rs. 4000
Answer: Option C
Solution(By Examveda Team)
$$\eqalign{ & {\text{Rate of interest}} \cr & {\text{r}} = {\text{12}}\frac{1}{2}\% = \frac{1}{8} \cr} $$Year | Principal | Installment | |
⇒ I | 8×9 → | 9×9 | ......(i) |
⇒ II | 64 → | 81 | ......(ii) |
⇒ Total principal = 72 + 64 = 136 units
136 units → 6800
1 units → 50
81 units → 4050
⇒ Each installment = Rs. 4050
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