A train covers a distance in 50 min, if it runs at a speed of 48 kmph on an average. The speed at which the train must run to reduce the time of journey to 40 min will be. Choose the correct choice from the following answers
A) 60 kmph	B) 45 kmph	C) 50 kmph	D) 55 kmph	E) 70 kmph
Time = 50/60 = 5/6 hr   dist = S * T = 48*5/6= 
<gadget id="calculator">48*5/6</gadget>
<output>40</output>
40 km   Time= 50/60 =&gt; new speed = 40*3/2= 
<gadget id="calculator">40*3/2</gadget>
<output>60</output>
60 kmph   60 kmphNSWER 60 kmph
<result>A</result>
A train covers a distance in 50 min, if it runs at a speed of 48 kmph on an average. The speed at which the train must run to reduce the time of journey to 40 min will be.