Question

Question #6eb87

Answer 1

Distance travelled in 50 minutes = `"60 km"`.

Explanation:

Speed of motorist = `"108 km"/"90 min"`

Distance travelled in 50 minutes = `"108 km"/"90 min"xx"50 min"`

Distance travelled in 50 minutes = `"60 km"`

Answer 2

`60 km`

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 = "60 km"`