The simple interest on a sum of money will be Tk. 600 after 10 years. If the principal is trebled after 5 years, what will be the total interest at the end of the tenth year?
A. Tk. 600
B. Tk. 900
C. Tk. 1200
D. Tk. 1500
সঠিক উত্তরঃ
C.
Tk. 1200
Explanation:
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