$1.$Margaret drove to a business appointment at $60mph.$ Her average speed on the return trip was $50mph.$ The return trip took $\frac{1}{5}$ hr longer because of heavy traffic. How far did she travel to the appointment?

She traveled miles.

$2.$Two high$-$speed ferries leave at the same time from a city to go to the same island. The first ferry, the Cat, travels at $33$ miles per hour. The second ferry, the Bird, travels at $21$ miles per hour. In how many hours will the two ferries be $12$ miles apart?

The ferries will be $12$ miles apart after hour$($s$).$