Answer:
Between 1.00 to 1.20
Explanation:
Annual Cost = 2 per year
Benefits = 9 per year
Dis benefits = 0.6 per year
Life = 10 years
Interest Rate = 6%
Calculate the conventional benefit cost ratio.
Conventional Benefit Cost Ratio Using Present Worth Method.
B/C Ratio = PW of Benefits – PW of Dis benefits ÷ PW of initial cost + PW of annual cost
PW of Benefits = 9 (P/A, 6%, 10)
PW of Benefits = 9 (7.3601) = 66.24
PW of Dis benefits = 0.6 (P/A, 6%, 10)
PW of Dis benefits = 0.6 (7.3601) = 4.42
PW of initial cost = 20 (P/A, 6%, 4) – 5 (P/G, 6%, 5)
PW of initial cost = 20 (3.4651) – 5 (4.9455) = 44.57
PW of annual Cost = 2 (P/A, 6%, 10)
PW of annual Cost = 2 (7.3601) = 14.72
Calculate Conventional Benefit Cost Ratio
B/C Ratio = (66.24 – 4.42) ÷ (44.57 + 14.72)
B/C Ratio = 61.82 ÷ 59.29
B/C Ratio = 1.04
Answer – Between 1.00 to 1.20