A factory can make 120 backpacks in 3 hours.
How long would it take to make 600 backpacks?
A.) 15 h
B.) 20 h
C.) 30 h
D.) 40 h
How long would it take to make 600 backpacks?
A.) 15 h
B.) 20 h
C.) 30 h
D.) 40 h
