16. If the inflation rate is 5% per year, how many years will it take for the cost of an item to double, B. 13.5 years if the price increases only by the inflation rate? A. 13.3 years (2) C. 10 years D.14.2 years (2.5) 17. A certain project requires an investment of $10,000 now and a series of 5 equal annual payments of $3,000 from year 1 to S. Assume that the average inflation rate is 2% per year, and the MARR is 8% per year during this period. The equivalent present worth of these payments is closest to: A. S-21,326 8. $-25,203 CS-19,152 D. S-27,199 18. Find the present worth sum of money that would be equivalent to the future amounts of $5000 (15) in year 6 and $7000 in year S if the real interest rate is 10% per year and the inflation rate is 5% per year. C$4,976 D. $5,911 B. $5,381 A. $4,316 TY G NEER