(A) 54 Km/h
(B) 63 Km/h
(C) 72 Km/h
(D) 87 Km/h
Correct Option is: C
Let speed of the jeep =x kmph
Then, speed of the bus =(100+25)x/100
=125x/100 =5x/4 kmph
Time taken by the jeep to travel from P to Q
=225/x hours
Time taken by the bus to travel from p to Q
=225/(5x/4) +(37.5/60)
Since both start from P at the same time and reach point Q at the same time,
225/x = 225/(5x/4) +(37.5/60)
225/x=900/5x+37.5/60
225/x=180/x+37.5/60
45/x =37.5/60
37.5x=45*60
X=72 km/hr