total time = 45 min .75 hour
72 t + 48(.75-t) = 48 etc
A man drives from ibadan to Oyo, a distance of 48km in 45 minutes. If he drives at 72km/h where the surface is good and 48km/h where it is bad, find the number of kilometres of good surface.
3 answers
thank you, but where do you get 75 hr?
Look carefully, Damon had .75 not 75
45 minutes
= 3/4 hour
= .75 hours
45 minutes
= 3/4 hour
= .75 hours