A train covers a distance in 50 min, if it runs at a speed of 48kmph on an average. The speed at which the train must run to reduce the time of journey to 40min will be.  Answers:	A) 60 km/h	B) 55 km/h	C) 40 km/h	D) 70 km/h	E) 80 km/h
Time=50/60 hr=5/6hr   Speed=48mph   distance=S*T=48*5/6= 
<gadget id="calculator">48*5/6</gadget>
<output>40</output>
40km   time=40/60hr=2/3hr   New speed = 40* 3/2= 
<gadget id="calculator">40* 3/2</gadget>
<output>60</output>
60kmph   60 km/hnswer : 60 km/h.
<result>A</result>
A train covers a distance in 50 min, if it runs at a speed of 48kmph on an average. The speed at which the train must run to reduce the time of journey to 40min will be.