Grade 8 - Mathematics 9.11 Problems on Time and Distance - I

Distance (d)= Speed(s) * Time(t)
If we convert kilometre per hour into metre per sec. we should multiply that with 5/18.
If we convert metre per sec. into kilometre per hour we should multiply that with 18/5.

Example:
If speed is 36 km/hr find the speed in metres per sec.? Solution:
= 36*5/18
= 10 m/sec.

Directions: Solve the following problems. Also write at least 5 examples of your own.