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1. A certain amount of money earning simple interest becomes 7/5th of the initial amount in 4 years . What is the interest rate?
- A. 4%
- B. 4%
- C. 4%
- D. 4%
Answer: Option D
Explanation:
আমরা জানি, I = Pnr
বা,7/5P-P = P x 4 xr
বা,5/2P=Px4xr
বা, r = 10%
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