Question

A car travel a certain distance from town A to B at the speed of 42km/h and from town B to A at a speed of 48km/h. what is the average speed of the car?​

Answer 1

Here, x = 42km/h and y = 48km/h

As we know that : Average speed

$\frac{2xy}{x + y}$

Then, Average Speed =

$= > \frac{2 \times 42 \times 48}{42 + 48} \\ \\ = > \frac{2 \times 2016}{90} = 44.8$

So, the Average speed will be 44.8km/h

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