A train moves at average speed of 60kmph reaches its destination on time.what its average speed becomes 50kmph , then it reaches its destination 15 late. find the length of the journey?
Choose the correct option:
A) 4.86km	B) 2.5km	C) 6.86km	D) 5.867km	E) 3.25km
Difference between timings=15 min=1/4hr   let the length of the journey be x km.   then x/50-x/60=1/4   x/10=1/4   x=2.5km   Answer (2.5km)
<result>B</result>
A train moves at average speed of 60kmph reaches its destination on time.what its average speed becomes 50kmph , then it reaches its destination 15 late. find the length of the journey?