Mr x Made a fixed desposit of Tk. 10,000 for 1 year at an annual rate of 8 percent compounded seiannually. Calculate the amount of interest to be paid at maturity ?

A Tk. 10214
B Tk. 364
C Tk. 816
D Tk. 480

Correct Answer: Tk. 816

Mr. X 1 বছরের জন্য 10,000 টাকার একটি Deposit certificate কিনল, যা 6 মাস পর 8% হার চক্রবৃদ্ধি সুদ প্রদান করে । Mr. X মোট কত টাকা সুদ পাবে তা বের করতে হবে । এখানে, সুদাসল, c = ?; semi annually হওয়ায়, n = 2; সময় t = 1 বছর; আসল, p = 10,000 Tk. সুদের হার, r = 8% = 81008100 আমরাজানি, = P(1 + rn)n×tP(1 + rn)n×t = > c = 100(1 + 82×100)2×1100(1 + 82×100)2×1 = > c = 10,000(1 + 125)210,000(1 + 125)2 = > c = 10,000(2625)210,000(2625)2 = > c = 10,000×26×2625×2510,000×26×2625×25 = > c = 10,816. অর্থাৎ তিনি মোট সুদ পাবেন = (c - p) Tk. = (10,816 - 10,000) Tk. = 816 টাকা ।
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