Ground beef sells for $\$ 5.00$ per $\mathrm{kg}$. How much does $12 \mathrm{~kg}$ of ground beef cost?
(A) $\$ 5.00$
(B) $\$ 12.00$
(C) $\$ 60.00$
(D) $\$ 17.00$
(E) $\$ 2.40$
Since ground beef sells for $\$ 5.00$ per $\mathrm{kg}$, then the cost of $12 \mathrm{~kg}$ is $\$ 5.00 \times 12=\$ 60.00$.

ANswer: (C)