# Q9. A car takes $2$ hours to reach a destination by travelling at the speed of  $\inline 60 \; km/h$ . How long will it take when the car travels at the speed of $\inline 80 \; km/h$ ?

Given that a car has a speed of 60 km/h which is travelling to a destination and takes 2 hours to complete it.

Speed and time are inversely related to each other.

Assume the time it would take when travelling at 80km/h be 'x'

Therefore we can write the equation when the car travels at the speed of 80 km/h as:

$2hours\times 60km/h = x\times 80km/h$

or   $x= 1.5 hours$   or     $1 hour\ and\ 30 minutes.$

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