A motorist travels 160 km in the same time as another motorist traveling at 40 km/h fastest, covers 240 km. How long does the journey take?

1 Answer
Apr 21, 2018

#t=2 " hours"#

Explanation:

Assuming it says faster and not fastest, we can say that:
Note that distance is equal to #velocity*time#

So we can say that:
#vt=160 #
#(v+40)t= 240#

Let's solve by substitution:
#v=160/t#

#(160/t+40)t=240#

#160+40t=240#

#40t= 80#

#t=2 " hours"#