Answer:
$3,286.52
Explanation:
Interest rate per annum = 12.00%
Number of years = 25
Number of compounding per per annum = 1
Interest rate per period (r) = 12.00%
Number of periods (n) = 25
Payment per period (P) = $24,000
PV of $24,000 payments after 20 years = P * [1 - (1/(1+r)^n)]/ r
PV of $24,000 payments after 20 years = 24000*[1-(1/(1+12%)^25]/12%
PV of $24,000 payments after 20 years = $188,235.34
Interest rate per annum = 10.00%
Number of years= 20
Number of payments per per annum = 1
Interest rate per period (r) = 10.00%
Number of periods (n) = 20
Future value of annuity (FVA) = $188,235
Annual contribution (P) = FVA/ ([ (1+r)^n - 1] / r)
Annual contribution (P) = 188235/(((1+10%)^20-1)/10%)
Annual contribution (P) = $3,286.52