Question

At an effective annual interest rate $i,$ you are given:

i$)$ The present value of an annuity$-$immediate with annual payments of $1$ for $n$ years is $40.$

ii$)$ The present value of an annuity$-$immediate with annual payments of $1$ for $3n$ years is $70.$

Calculate the accumulated value of an annuity$-$immediate with annual payments of $1$ for $2n$ years.

Possible Answers

$240$

$243$

$260$

$268$

$280$