17.20 Question 3 (1 point) A particular asset has the following payment scheme: $100 at the end of years 1,3,7 $400 at the end of years 2,6 $900 at the end of year 10 The annual effective yield is 5%. Calculate the modified duration of this asset. a) 7.81 Ob) 6.27 Oc) 6.06 Od) 5.78 e) 8.27 Question 4 (1 point)