Distance, Speed and Time

 

 

         Da

 

Slow          Turtle

 

 

 

Remember :Units must be the same !

  times decimal of hour by 60 to  get minutes

1.15hrs means 1hr 9 minutes, not 1 hr 15 minutes

 

divide minutes by 60 to get decimal of hour     

3hrs 45 minutes  = 3.75 hours

 

 

·       Distance travelled

 

 

 

 

 

Example

 

A man walks for 3 hours at a speed of

3 miles per hour. How far has he travelled ?

 

 

 

 

Example

 

A man walks for 45 minutes at a speed of

3 miles per hour. How far has he travelled ?

 

 

        

 

 

 

·      Average Speed maintained

 

 

 

 

Example

A man covers a distance of 21 miles in

7 hours. What was his average speed ?

 

 

 

 

Example

 

A man covers a distance of 232 miles in

7 hours and 15 minutes. What was his average speed ?

 

 

 

 

 

 

·       Time taken

 

 

 

 

 

Example

How long does it take an aircraft

 travelling at 580 kmh to travel

a distance of 232 kilometres ?

 

 

 

 

Example

 

A man drove a distance of 250 miles at an average speed of 70 mph.

How long did the journey take ?

Give your answer in hours, minutes and seconds.