Instead of Model A and B, Jane is now considering Model X and Y as she learned that her budget envelope has increased to $15,000

	Model (C)	Model (X)	Model (Y)
Initial Cost	$7,500	$10,000	$12,500
Life (years)	4	4	4
Annual Savings	$2,500	$2,750	$7,000

22. What is the payback period for purchasing Model A, B and C? A. 3.0, 3.6 and 1.8 years, respectively.
    2. 3 years for C and X, 1 years Y
    3. 3 years for C, 4 years for X and Y
    4. 3 years for C, 4 years for X, 2 years for Y
    5. None of the above