m uiale ul return. (4.7) 48. A certain project has net receipts equaling $1,000 now, has costs of $5,000 at the end of the first year, and earns $6,000 at the end of the second year. a. Show that multiple rates of return exist for this problem when using the IRR method (i' = 100%, 200%). (Appendix 4-A) b. If an external reinvestment rate of 10% is available, what is the rate of return for this project using the ERR method? (4.7