Question

A car travels from P to Q at a constant speed.If the speed were increased by 10km/hr,it would have taken 1 hour lesser to cover the distance.It would have taken further 45 minutes lesser if the speed was further increased by 10 km/hr.What is the distance between two cities

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Answer 1

Answer:

Step-by-step explanation:

P ---------------------------------------------- Q

     speed = x   ,    time = y

if speed = x + 10 km/h                                       if speed = x + 10 + 10        

then time =  y - 1 hrs                                          then time =  y - 1 - 9/15 hrs