Asked by ENIOLA
A man drives a car at a distance of 200km at n average speed of 50km/hr. What must be his average speed for the next 220km. If he is to cover the total distance in 9hours
Answers
Answered by
mathhelper
Time taken for first part of trip = 200 km / (50 km/h) = 4 hours
time remaining for 2nd part of trip = 5 hours
avg speed to go 220 km in that time = 220 km/ 5 hrs = 44 km/h
time remaining for 2nd part of trip = 5 hours
avg speed to go 220 km in that time = 220 km/ 5 hrs = 44 km/h
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