How many parts by weight of 40% cream and 3% milk must be mixed to make milk testing 5% fat?

How many parts by weight of 40% cream and 3% milk must be mixed to mak

1.	How many parts by weight of 40% cream and 3% milk must be mixed to make milk testing 5% fat?
A.	2 and 35
B.	4 and 45
C.	5 and 10
D.	6 and 12
Answer» B. 4 and 45