How much interest will Tk. 2000 earn in one year at an annual rate of 8% if the interest is compounded every six months ?
Correct Answer: Option B
Solution:
অনুবাদঃ চক্রবৃদ্ধিতে (প্রতি বছরে 2 বার সুদ Count করা হবে ) 8% হার সুদে 2000 টাকার 1 বছরের সুদ কত হবে ?
Shortcut: Here, P = 2000 Tk; r = 0.08; n = 1 and m = 2
C = P\({(1 + \frac{r}{m})^{n \times m\;}} = 2000{(1 + \frac{{.08}}{2})^{1 \times 2\;}}\)
= Tk. 2163.20
Interest is (2163.20 - 2000) = Tk. 163.20
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