1) Determine the payback period for a proposed investment costing $50,000 as follows. Year Cash flow 0 -$50,000 investment 1 $10,000 2 $12,000 3 $15,000 4 $18,000 5 $20,000 a)year 5 b)year 4 c)year 2 d)year 3 2) Determine the conventional payback period (to the nearest year) for the following project if the MARR is 10%. initial cost $10,000 Annual maintenance $500 in year 1, increasing by $200 per year Annual Income $3000 Salvage Value $4000 Useful Life 10 years a) year 4 b)year 3 c)year 5 d) year 6