QUESTION 6 27.27 points You are given: The sum of the present values of a payment of X at the end of 10 years and a payment of Yat the end of 30 years is equal to the present value of a payment of X + Y at the end of 20 years. X+ y = 500 13% Calculate X O A 172.7 OB. 188.4 O C. 1972 D.200.5 E. 213.3