SOLUTION: A car travels 150 km in 1 hour and 20 minutes. What is the average speed of the car in km per hour.

Question 286765: A car travels 150 km in 1 hour and 20 minutes. What is the average speed of the car in km per hour.
Found 2 solutions by checkley77, mcleo:
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
D=RT
150=R*4/3
150=4R/3
4R=150*3
4R=450
R=450/4
R=112.5 KMH. ANS.

Answer by mcleo(3) (Show Source): You can put this solution on YOUR website!
1hour 20min = 80min
150/80 = 1.875
1.875*60 (60min in an hour)
112.5 km/h

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