Answer:
Therefore the constant rate of new machine should be 30 units per hour.
Explanation:
Given that,
Company C has a machine that, working alone at its constant rate.
In 5 hours it produced 100 units certain product.
In 1 hour it produced (100÷5) units certain product.
=20 units.
So,the constant rate of this machine is 20 units per hours.
Company C buys a new machine.
If two machine are working together,
In 2 hours, they produces 100 units.
In 1 hour, they produces (100÷2) units=50 units.
The constant rate of both machines is 50 units per hours.
Since first machine produces 20 unit per hour.
Then, the new machine produces =(50-20) =30 units per hour.
Therefore the constant rate of new machine should be 30 units per hour.
