The average of five positive numbers is 56. If the first number is three-fourth of the sum of the last four numbers, then the average of the last four numbers is:

The average of five positive numbers is 56. If the first number is thr

1.	The average of five positive numbers is 56. If the first number is three-fourth of the sum of the last four numbers, then the average of the last four numbers is:
A.	50
B.	35
C.	30
D.	40
Answer» E.