All members of our painting team paint at the same rate. If $40$ members can paint a $100$ square foot wall in $50$ minutes, then how long would it take the $40$ members to paint a $480$ square foot wall, in minutes?

Here is my attempt

1. Members of the painting team can paint a 100 square foot wall in 50 minutes.

2. The work rate of the team is 2 square feet per minute.

3. It would take the 40 members 240 minutes to paint a 480 square foot wall using the same work rate