Problema Solution
craig drives 20km hr faster than Marilyn. in the same time that Mariln drives 225km, craig drives 325 km, whats the speed of each car
Answer provided by our tutors
225/t = x
325/t = x+20
where x is speed of marilyn
so, 325/t = 225/t +20
100/t = 20
t = 5
marilyn's speed = x = 225/t = 225/5 = 45 km/hr
craig's speed = 45+20 = 65km/hr