david and jackson started a journey of distance 110 kilometre if they were takes 22 minutes more who is travelling at 60 kilometre per hour calculate the speed of david
Answers
Given : Question is not clear
david and jackson started a journey of distance 110 kilometre
David is travelling at 60 kilometre per hour
Case 1 : David took 22 minutes more than Jackson
Case 2 " Jackson took 22 minutes more than David
To Find : calculate the speed of david
Solution:
Case 1 : David took 22 minutes more than Jackson
David is travelling at 60 kilometre per hour
Distance = 110 km
Distance = Speed * Time
Time Taken by David = 110/60 hr
= 110 minutes
David took 22 minutes more than Jackson
=> Jackson took time = 110 - 22 = 88 minutes
= 88/60 hr
Speed of Jackson = 110/ (88/60)
= 75 km/hr
Case 1 : Jackson took 22 minutes more than David
David is travelling at 60 kilometre per hour
Distance = 110 km
Distance = Speed * Time
Time Taken by David = 110/60 hr
= 110 minutes
Jackson took 22 minutes more than David
=> Jackson took time = 110+ 22 = 132 minutes
= 132/60 hr
Speed of Jackson = 110/ (132/60)
= 50 km/hr
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