Question

Zia was driving his truck on the super highway. His speed was recorded by the motorway camera between 6:00am to 8:30am. He covered a distance of 250km during this time. Calculate his average speed between this time duration.

Answer 1

Given:

Zia was driving a truck between 6:00 a.m. to 8:30 a.m.

He covered a distance of 250 km during this time

To find:

His average speed between this time duration.

Solution:

The formula to calculate the average speed is given as:

$\boxed{\boxed{\bold{Average \:Speed = \frac{Total\:distance\:covered}{Total\:time\:taken\:to cover\:that\:distance} }}}$

here

Total distance covered by Zia = 250 km

and

The time recorded by the motorway camera was between 6:00 a.m. to 8:30 a.m.

i.e., the total time taken by Zia to cover that distance =  $2\frac{1}{2} \:hrs$

Now, substituting the values in the formula, we get

$Average \: speed = \frac{250}{2\frac{1}{2} }$

$\implies Average \: speed = \frac{250}{\frac{5}{2} }$

$\implies Average \: speed = 250 \times \frac{2}{5 }$

$\implies Average \: speed = 50 \times 2$

$\implies \bold{Average \: speed = 100\:km/hr}$

Thus, Zia's average speed between this time duration is 100 km/hr.

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