Question

Mansi travels 300kms to her native partly by train
and & partly by bus. She takes 4 hours, if she travel
60Kms by train and the remaining by bus,
takes 10 minutes longer Find the average speed of
the train and the bus separately.​

Answer 1

Step-by-step explanation:

Let the speed of the train be x km/hr and the speed of the bus is y km/hr.

So according to question and using Time=SpeedDistance

Total distance =300 km

Roohi travels 60 km by train and 300−60=240 by bus in 4 minute,

x60+y240=4

and 100 km by train, 300−100=200 by bus, and takes 10 minutes more,

x100+y200=4+6010⇒x100+y200=625

Now, let x1=u and y1=v

then 60u+240v=4.............eq1

        100u+200v=625..............eq2

multiply eq1 by 5 and eq2 by 6 we get

300u+1200v=20....<

Answer 2

Answer:

6/25 speed of train 240/62