# math

Two towns P and Q are 400 km apart. A bus left for P and Q. It stopped at Q for one hour and then started the return to P. one hour after the departure of the bus from P, a trail also heading for Q left P. the trailer met the returning bus ¾ of the way from P to Q. they met t hours after the departure of the bus from P.

(a) Express the average speed of the trailer in terms of t

(b) Find the ratio of the speed of the bus so that of the trailer.

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1. see related questions below

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2. (a) 3/4*400 = 300 Km
Speed = 300/t km/hr
(b) Speed Of Bus (400+100)/t=500/t
(500/t)/(300/t)
The Ratio Is 5:3

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