When the price of each of the given assets is $10,000 and the interest rate is 10%, then investment is most justified for: (1) a perpetuity paying $900 annually. (2) a machine with a 3 year life which can be leased to an outsider for $10 per day. (3) an income stream paying $5500, $4400, and $3300, respectively, at the ends of each of the subsequent three years. (4) a bond paying $12,100 two years from today. (5) economic capital along with an expected rate of return computed at 8.5 percent.
Can anybody suggest me the proper explanation for given problem regarding Economics generally?