Answer:
The principal which should be invested in account is $125,698.324
Explanation:
Given as :
The monthly payment amount = $2500
The time period = 6 years = 6 × 12 = 72 months
So, The payment for 72 months = $2500 × 72 = $180,000
The rate of interest compounded monthly = 6%
The investment amount in account = P
Now, From compounded method
Amount = Principal ×

$180,000 = P ×

Or, $180,000 = P ×

Or, $180,000 = P × 1.432
∴ P =
= $125,698.324
Hence The principal which should be invested in account is $125,698.324 . Answer