SOLUTION: A motorway journey takes 3 hours at an average speed of 120km/hr.How long will it take if the average speed is reduced to 80km/hr?
Algebra.Com
Question 970236: A motorway journey takes 3 hours at an average speed of 120km/hr.How long will it take if the average speed is reduced to 80km/hr?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
Distance=(rate)(time)=(120km/hr)(3 hrs)=360 km
The distance is 360 kilometers.
Time=distance/rate=360 kilometers/80km/hr=4.5 hours
ANSWER: It will take 4.5 hours at 80km/hr.
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