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At what rate of profit a principle becomes Tk. 460 with simple profit in 3 years and Tk. 600 with simple profit in 5 years?

At what rate of profit a principle becomes Tk. 460 with simple profit in 3 years and Tk. 600 with simple profit in 5 years? Correct Answer 28%

৫ বছরের সুদাসল = ৬০০ টাকা ৩ বছরের সুদাসল = ৪৬০ টাকা ২ বছরের সুদাসল = (৬০০ - ৪৬০) = ১৪০ টাকা ১ বছরের সুদাসল = ১৪০/২ = ৭০ টাকা ৩ বছরের সুদাসল = ৭০ × ৩ = ২১০ টাকা আসল = ৪৬০ - ২১০ = ২৫০ টাকা ২৫০ টাকার সুদ = ৭০ টাকা ১ টাকার সুদ = ৭০/১৫০ = ৭/২৫ টাকা ১০০ টাকার সুদ = (৭ × ১০০)/২৫ = ২৮%

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