A sum of Rs. 5324 is accumulated in 3 years at 10% compound interest, What is the original amount = ?
A. Rs. 2000
B. Rs. 4000
C. Rs. 6000
D. Rs. 3000
Answer: Option B
Solution(By Examveda Team)
Let the principal = 1000, r = 10%, T = 3YearRate r = 10% = $$\frac{1}{10}$$
Amount = 300 + 30 + 1 + 1000(Principal) = 1331
⇒1331 unit → 5324
⇒ 1unit → $$\frac{5324}{1331}$$
∴ 1000unit = $$1000 \times \frac{5324}{1331}$$ = 4000
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