Question

How long will take for 1860 invested at the rate of 9.5% per annum simple interest to amount to 2449?

Answer 1

Let a be the year.
1860=2449×9.5%×a
1860=233a
1860÷233=a
a=8(Corr to 3 sig fig)

Answer 2

I hope it is the expression for this question..