SOLUTION: it is 185 km from city A to city B. if a bus takes 2 hours to cover the first 85 km, how long must it take to travel the final 100 km in order to average 50 km per hour for the ent

Question 754630: it is 185 km from city A to city B. if a bus takes 2 hours to cover the first 85 km, how long must it take to travel the final 100 km in order to average 50 km per hour for the entire trip:
A. 60 minutes
B. 75 minutes
C. 102 minutes
D. 112 minutes
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
Set up the equation:-
185km/x = 50km/hr
x = 185/50
x = 3.7hr or 3 hours 42 mins
So he must do the final 100km
in 1hr 42mins or 102 mins (C)
Hope this helps
:-)
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