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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 300. What was the principal amount that she invested at the beginning?

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 300. What was the principal amount that she invested at the beginning? Correct Answer 200

আসল + 5 বছরের মুনাফা = 300 আসল + 2 ,, ,, = 240 [( - ) করে ] ∴ 3 বছরের মুনাফা = 60 ∴ 2 ,, ,, = 60×23 = 40 ∴ Principal = 240 - 40 = 200 টাকা

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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 a another 3 years and got a final amount of Tk 300. What was the principal amount that she invested at the beginning?
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