# Time, Speed and Distance

Time:

Time is the ongoing sequence of events taking place. The past, present and future. We measure time using seconds, minutes, hours, days, weeks, months and years.

Speed:

How fast something is moving. Measured as distance traveled per unit of time.

Example: The speed of these cars is over 150 kilometers per hour (150 km/h).

Distance:

Distance is the space between two objects or points.

Relationship between Time, Speed and Distance is:

Speed = Distance/Time

1

A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?

2

An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 1$$2\over3$$ hours, it must travel at a speed of:

3

Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many minutes does the bus stop per hour?

4

In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is:

5

The ratio between the speeds of two trains is 7 : 8. If the second train runs 400 km in 4 hours, then the speed of the first train is: