A train travels 40 km west in an hour. The train stops for another hour. Then, the train travels another 80 km
west in two hours.
What is the velocity of the train?

Ahealth-food producer has 250 samples of a new snack to distribute in the mall. the producer has to keep at least 50 samples for display in the health food for the product launch. how long will the samples last if consumers are taking the samples at a rate of 25 every hour