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കൂട്ടുപലിശ കണക്കാക്കുന്ന ബാങ്കിൽ 8000 രൂപ നിക്ഷേപിച്ചു. 2 വർഷം കൊണ്ട് 9680 രൂപ,ആയാൽ പലിശ നിരക്ക് എത്

A5%

B6%

C8%

D10%

Answer:

D. 10%

Read Explanation:

A=P(1+R/100)nA = P(1+R/100)^n

9680=8000(1+R/100)2 9680 = 8000(1 + R/100)^2

9680/8000=(1+R/100)2 9680/8000=(1+R/100)^2

484/400=(1+R/100)2 484/400=(1+R/100)^2

1+R/100=484/400 1+R/100=\sqrt{484/400}

=22/20=22/20

100+R=2220×100100+R=\frac{22}{20}\times100

100+R=110100+R=110

R=110100R=110-100

R=10%R=10\%


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