Read posting on **Sarin’s father visits his friend in JB town** to know about JB town as well as reading posting on **Sarin’s father crossing the Causeway** to know about the Johor-Singapore Causeway.

Read also posting on **Sarin learns rate of change in school (Math Concept)**** **to learn about concept of speed and relative speed.

Upper primary school mathematics question UPQ82

Sarin’s father travelled from Simei to JB town by car at an average speed of 60km/h. At the same time there was a taxi started off together in the same direction from Simei and drove towards JB Town at an average speed of 96km/n. How far apart would they be after 20 minutes?

Solution:

The speed of Taxi is faster than Car by 96 – 60 = 36km/h

Another word, the taxi would travel 36km more than the car in one hour time.

20minutes is 20/60 = 1/3 of an hour

We can draw a distance as below:

3 units = 36

1 unit (20minutes) = 12km

The taxi and the car are 12km apart after 20mintues

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