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1. A sum of Tk. 600 amounts to Tk. 720 in 4 years at Simple Interest. What will it amount to if the rate of interest is increased by 2% ?
- A. Tk.648
- B. Tk.648
- C. Tk.648
- D. Tk.648
Answer: Option B
Explanation:
এখানে, I = 720 - 600 = 120
r = 120× 100 / 600 × 4 = 5%
2% বৃদ্ধিতে মুনাফার হার ( 5 + 2) % = 7%
I = 600 × 7/100 × 4 = 168
মুনাফা - আসল = 600 + 168 = 768
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