Please help me a. determine the most cost effective way to pay for an asset from 3 payment arrangements: Option 1- R15 000 per month for 10 years. Option 2- R14 850 per month for 10 years starting from today. Option 3- A lump sum payment of R3 500 000 at the end of 10 years. If interest is 12%, which option is the most cost effective?

b.) What is the present value of a R2500 annual perpetuity that starts at the end of 4 years if interest is 5%? Draw a timeline as part of your solution. ​

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?