In a certain town, the ratio of the number of bicycles to the number of cars is 3 to 5. If the total number of bicycles and cars combined is 160, what is the difference between the number of bicycles and the number of cars?
Let the number of bicycles be represented as $B$ and the number of cars as $C$. The given relationship can be expressed with the following equations:
$$ \frac{B}{C} = \frac{3}{5} $$
and
$$ B + C = 160 $$