A sum of money invested at compound inter… | Answer

Subject

Bank Exam

Topic

Pubail Bank Ltd. - Senior Officer - 2017

A sum of money invested at compound interest amounts to Tk. 4,624 in 2 years and to Tk. 4,913 in 3 years. The sum of money is:
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ক)

Tk. 4,096

খ)

Tk. 4,260

গ)

Tk. 4,335

ঘ)

Tk. 4,360

Explanation

Solution: প্রশ্নটিতে বলা হচ্ছে যে, চক্রবৃদ্ধি সুদে 2 বছরে কোন আসল 4,624 টাকা এবং 3 বছরে 4,913 টাকা হয় । আসল কত ? 2 বছর পর আসল = 4,624 টাকা এবং 3 বছর পর আসল = 4,913 টাকা 1 বছরে Simple interest, I = 4,624 - 4,913 = 289 টাকা এখানে, P = 4,624 Tk এবং t = 1 বছর Compound interest (A) =

P{(1 + \frac{r}{{100}})^{t\;}}

সূত্রমতে, এখন,

x{(1 + \frac{{25}}{{4 \times 100}}\;)^{2\;}}

= 4,624 r =

\frac{{100 \times i \times t}}{p} = \frac{{100 \times 289 \times 1}}{{4624}} = \frac{{25}}{4}\%

ধরি, আসল x টাকা =>

x{(1 + \frac{1}{{16}})^{2\;}}

= 4,624 =>

x{(\frac{{17}}{{16}})^{2\;}}

= 4,624 x =

\frac{{4624 \times 16 \times 16}}{{17 \times 17}}

= 4,096

আলপিন, আলমারি, পাউরুটি, চাবি _______ শব্দগুচ্ছ কোন ভাষা থেকে এসেছে ?The use of bullock carts is a superannuated mode of transportation.It was a scurrilous attack on him.'আষাঢ়ে গল্প' বলতে বোঝায়-His pacific personality helps in keeping harmony in the family.কোনটি আগুনের সমার্থক শব্দ নয় ?It was nothing but a ponderous lecture.If you want real solace go to Cox's Bazar.

A sum of money invested at compound interest amounts to Tk. 4,624 in 2 years and to Tk. 4,913 in 3 years. The sum of money is:Reading

A sum of money invested at compound interest amounts to Tk. 4,624 in 2 years and to Tk. 4,913 in 3 years. The sum of money is:

Explanation

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A sum of money invested at compound interest amounts to Tk. 4,624 in 2 years and to Tk. 4,913 in 3 years. The sum of money is:
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