Question

Tyron takes 3/4 hour to paint a wall. His brother takes 1/3 of the time he takes. How long will his brother take to paint 5 similar walls?

Answer 1

3/4 of an hour = 45 minutes
1/3 of 45 = 15 minutes

15 minutes x 5 walls = 75 minutes = 1 hour and 15 minutes = 1 1/4 hours