SOLUTION: You normally drive on the freeway between San Diego and Los Angeles at an average speed of 104 km/h (65 mi/h), and the trip takes 2 h and 21 min. On a Friday afternoon, however, he

Question 779777: You normally drive on the freeway between San Diego and Los Angeles at an average speed of 104 km/h (65 mi/h), and the trip takes 2 h and 21 min. On a Friday afternoon, however, heavy traffic slows you down and you drive the same distance at an average speed of only 69 km/h (43 mi/h). How much longer does the trip take?
Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
2hrs 21 mins = 2.35 hours
Distance = Speed * Time
Distance = 104 km/hr * 2.35 hrs
= 244.4 km.
Time = Distance/Speed
Time = 244.4km/69km/hr
= 3.542 hours
= 3 hours 33 minutes
3 hours 33 minutes - 2 hours 21 minutes
= 1 hour 12 minutes longer.
Hope this helps.
:-)
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