Annie invested a certain sum of money in… | Answer

Subject

Bank Exam

Topic

Mutual Trust Bank Ltd. 2014

Annie invested a certain sum of money in a bank that paid simple interest. The amount grew to Tk. 240 at the end of 2 years. She waited for another 3 years and got a final amount of Tk. What was the principal amount that she invested at the beginning?
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ক)

200

খ)

150

গ)

210

ঘ)

175

Explanation

The sum grew to 240 at the end of 2 years. At the end of another 3 years, the sum grew to 300. i.e. in 3 years, the sum grew by 60. Therefore, each year, it grew by 20. Sum at the end of 2 years = 240 Sum grew by 20 each year. Hence, in the first 2 years, sum grew by 2 * 20 = 40. Therefore, sum at the beginning of the period = Sum at the end of 2 years - 40 = 240 - 40 = 200.

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Annie invested a certain sum of money in a bank that paid simple interest. The amount grew to Tk. 240 at the end of 2 years. She waited for another 3 years and got a final amount of Tk. What was the principal amount that she invested at the beginning?Reading

Annie invested a certain sum of money in a bank that paid simple interest. The amount grew to Tk. 240 at the end of 2 years. She waited for another 3 years and got a final amount of Tk. What was the principal amount that she invested at the beginning?

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Annie invested a certain sum of money in a bank that paid simple interest. The amount grew to Tk. 240 at the end of 2 years. She waited for another 3 years and got a final amount of Tk. What was the principal amount that she invested at the beginning?
Reading