SOLUTION: A delivery driver drove 126 km in 1 hr and 45 min on return journey he held up at some road works so his average speed decreased by 9 km per her how long was he held up at the road
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Question 1053230: A delivery driver drove 126 km in 1 hr and 45 min on return journey he held up at some road works so his average speed decreased by 9 km per her how long was he held up at the road work Answer by jorel555(1290) (Show Source):
You can put this solution on YOUR website! 126/1.75=72 kph
72-9=63
126/63=2 hours
2-1.75=.25 hours, or 15 minutes being held up by roadwork. ☺☺☺☺
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