Journey 5

A man has to do a journey of 84km in 3 hours. He travels the first 30km at 20km/hr. At what rate must he travel the remaining distance to complete his journey on time?

Correct result:

v =  36 km/h

Solution:


84 - 30 = v • (3 - 30/20)

30v = 1080

v = 36

Our simple equation calculator calculates it.



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