The average stock value of three companies U, V and W is 545 billion. While the average stock value of three companies V, X and Y is 678 billion. Stock value of company V is 477 billion. What is the average stock value of U, V, W, X and Y?

The average stock value of three companies U, V and W is 545 billion.

1.	The average stock value of three companies U, V and W is 545 billion. While the average stock value of three companies V, X and Y is 678 billion. Stock value of company V is 477 billion. What is the average stock value of U, V, W, X and Y?
A.	687.5
B.	611.5
C.	678.5
D.	638.4
Answer» E.