Two towns P and Q are 144km apart by rail and 150km by road .A car takes t hours for the journey from P and Q and a train takes 24 minutes longer.
(a)Write down, in terms of t, expressions for the average speed of
the car and the train
(b)If a train average is 15kmh^-1 less than the car for the journey, write down an equation in t.
(c)By solving your equation in (b), find the average speed of the car and of the train
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