If they work together, they should take less time to make a 50 pound bag.

This time is given by:

\(\displaystyle \frac{1}{t_1} + \frac{1}{t_2} = \frac{1}{t_{total}}\)

Using the given values, we get:

\(\displaystyle \frac{1}{6} + \frac{1}{9} = \frac{5}{18}\)

So, the total time is 18/5 = 3.6 hours.

It takes 3.6 hours to make a 50 pound bag.

You can now use proportions to find the time it takes for 1500 pound of corn to be gound.