Answer:
The question is incomplete, it is missing the last part:
Each dollar invested in D at the beginning of year 5 returns $1.12 at the end of year 5.
Your uncle is obligated to make a balloon payment on an existing loan, in the amount of $24,000, at the end of year 3. He wants to cover that payment out of these funds as well.
First of all, you must invest enough money in B in order to pay your debt.
present value = future value / expected return
present value = $24,000 / $1.36 = $17,647.06
you have $90,000 - $17,647.06 = $72,352.94 to invest in A.
at the end of year 2, you will have:
future value = present value x expected return = $72,352.94 x $1.20 = $86,823.53
then you should invest that money ($86,823.53) in invested D and at the end of year 4 you will have:
future value = $86,823.53 x $1.66 = $144,127.06
finally, you should invest $144,127.06 in investment E and at the end of ear 5 you will have:
future value = $144,127.06 x $1.12 = $161,422.31