A car takes 4 hours to cover a distance, if it travels at a speed of 40 mph. What should be its speed to cover the same distance in 1.5 hours?

The basic linear equation is …

A person can run at a rate of 5 meters per second for 20 seconds. How far does she run in that time?

A car is traveling at a constant rate of 60 miles per hour. How much time will it take for the car to travel 250 miles?

 A cyclist covers a distance of 15 miles in 2 hours. Calculate his speed

A man travels at 3 mph in still water. If the current’s velocity is 1 mph, it takes 3 hours to row to a place and come back. How far is the place?

.Jacob is canoeing along a river that has an unknown current speed. It takes him 3 hours to go one mile against the current and 1 hour to go one mile with the current. How fast is the current?

X and Y are two stations which are 320 miles apart. A train starts at a certain time from X and travels towards Y at 70 mph. After 2 hours, another train starts from Y and travels towards X at 20 mph. At what time do they meet?

A train is going at $\frac{1}{3}$ of its usual speed and it takes an extra 30 minutes to reach its destination. Find its usual time to cover the same distance

.  A boy walks at a speed of 4 kmph. How much time does he take to walk a distance of 20 km?