# Question 6eb87

Dec 28, 2017

Distance travelled in 50 minutes = $\text{60 km}$.

#### Explanation:

Speed of motorist = $\text{108 km"/"90 min}$

Distance travelled in 50 minutes = $\text{108 km"/"90 min"xx"50 min}$

Distance travelled in 50 minutes = $\text{60 km}$

Jan 1, 2018

$60 k m$

#### Explanation:

The car is travelling at the same speed so we can compare the distances with the times using direct proportion.
He will drive further in a longer time.

It makes no difference whether you use hours or minutes, because we want an answer in km.

1 hour 30 mins = 90 mins

108/90 = x/50 " "(larr " km")/(larr " min")

x = (108"km"xx50cancel"min")/(90cancel"min"#

$x = \text{60 km}$