In an industrial area there is a factory which makes pens and pencils. The employees of this factory are very hardworking. Every year the factory earns a huge profit.
This factory earns a profit of ? 8 on each pack of pencils sold, while suffers a loss of
* 5 on each pack of pens sold.

(a) The factory sehs 3,000 packs of pencils and 5,000 packs of pens in a month. What
is its profit or loss?
(b) What is the number of packs of pencils it must sell to have neither profit nor loss
if 6,400 packs of pens are sold?
(c) What value do the employees of this factory depict?