Owen spends $\$ 1.20$ per litre on gasoline. He uses an average of $1 \mathrm{~L}$ of gasoline to drive $12.5 \mathrm{~km}$. How much will Owen spend on gasoline to drive $50 \mathrm{~km}$ ?
(A) $\$ 4.80$
(B) $\$ 1.50$
(C) $\$ 4.50$
(D) $\$ 6.00$
(E) $\$ 7.50$
Since Owen uses an average of $1 \mathrm{~L}$ to drive $12.5 \mathrm{~km}$, then it costs Owen $\$ 1.20$ in gas to drive $12.5 \mathrm{~km}$.

To drive $50 \mathrm{~km}$, he drives $12.5 \mathrm{~km}$ a total of $50 \div 12.5=4$ times.

Therefore, it costs him $4 \times \$ 1.20=\$ 4.80$ in gas to drive $50 \mathrm{~km}$.

ANSWER: (A)