Answer:
Proposal A
3.75 years
Proposal B
3.375 years
Explanation:
Proposal A
Payback = 3.75 years
Year Cash Inflow Initial Investment Balance Year Count
0 0 1,050,000
1 $280,000 770,000 1
2 $280,000 490,000 2
3 $280,000 210,000 3
4 $280,000 0 *3.75
* 1050,0000 / 280,000 = 3.75 years
Proposal B
Payback = 3.375 years
Year Cash Inflow Initial Investment Balance Year Count
0 0 1,050,000
1 $350,000 700,000 1
2 $3150,000 385,000 2
3 $280,000 105,000 3
4 $280,000 0 *3.375
* ( 3 + ( 105,000 / 280,000 ) ) = 3.75 years