If the cold-water faucet can fill the tub in 30 minutes, and the hot-water faucet can fill it in 60 minutes, how long will it take to fill the tub when they’re running together?
If 3 people can paint 3 fences in 3 hours, how long will it take one person to paint one fence?
If the goal is to drive across a 1 mile bridge in 1 minute and you’ve already driven across the first half of the bridge at the speed of 30 MPH, how fast do you need to drive across the second half of the bridge in order to make your goal of one minute?
2 fathers and 2 sons go to a restaurant. They order 3 hamburgers. Each person eats one hamburger. Explain.
4 people have to cross a bridge. 2 people at a time max and they must use a flashlight each way. Their crossing speeds are: 1 min, 2 min, 5 min, 10 min. How do they all cross in 17 minutes total?