Machine A produces 100 parts twice as fast as Machine B does.

Machine A produces 100 parts twice as fast as Machine B does. Machine B produces 100 parts in 60 minutes. If each machine produces parts at a constant rate, how many parts does Machine A produce in 6 minutes?

Quiz

Answer/Solution

20

Steps/Work

Machine B produces 100 part in 60 minutes. Machine A produces 100 parts twice as fast as B, so Machine A produces 100 parts in 60/2=30 minutes.
Now, Machine A produces 100 parts in 30 minutes which is 100/30 = 10/3 parts/minute.
10/3 parts X a total of 6 minutes = 20
A