Snookers Lumber can convert logs into either lumber or plywood. In a given day, the mill turns out three times as many units of plywood as lumber. It makes a profit of $30 on a unit of lumber and $45 on a unit of plywood. How many of each unit must be produced and sold inorder to make a profit of $16665.

Let lumber units = x. Then plywood units would be 3x.

30x + 45(3x) = 16665

Solve for x, then 3x.

I hope this helps. Thanks for asking.