If you can run at a speed of 2 km/hr, then how far you can go if you keep running for a complete day?
You have to go to building B from A and it's raining heavily. You want to get as less wet as possible. Will only running fast help you or can running slow also work?
If you can check out a library book for three weeks, and renew it twice, then how long can you keep it?
If you suddenly run a lot, you experience cramps in the leg muscles. Can you think of the reason behind it?