46. What is the present value of the following cash flow stream if the interest rate is 6 percent per year? Year Amount 1 1,000 2 2,000 3 2,000 4 4,000 C.Php 5,987 A.Php 7.571 B. Php 6,286 D. Php 6,930 47. Tanjiro is planning for her son's college education to begin five years from today. He estimates the yearly tuition, books, and living expenses to be Php 5,000 per year for a four year degree. How much must Tanjiro deposit today, at an interest rate of 8 percent, for his son to be able to withdraw Php 5,000 per year for four years of college? A. Php 20,000 C.Php 39,520 B. Php 13,620 D. Php 11,277 48. Zenitsu borrows Php 4,500 from the bank at 9 percent annually compounded interest to be repaid in three equal annual installments. The interest paid in the third year is A. Php 277.95 C.Php 352.00 B. Php 405.00 D. Php 147.00 49. How long would it take for you to save an adequate amount for retirement if you deposit Php 40,000 per year into an account beginning today that pays 12 percent per year if you wish to have a total of Php 1,000,000 at retirement? A 12.2 years C 14.8 years B. 10.5 years D. 11.5 years 50. How many years would it take for you to save an adequate amount for retirement if you deposit Php 2,000 per month into an account beginning today that pays 12 percent per year if you wish to have a total of Php 1,000,000 at retirement? A 13.7 years C 14.9 years B. 15.5 years D. 11.5 years