Walking at 5/6 of its usual speed, a train is 10 minutes too late. Find its usual time to cover the journey.	Pick:
A) 50 min
B) 20 min
C) 1 hour
D) 30 min
E) 45 min
new speed = 5/6 of the usual speed   new time taken = 6/5 of the usual time taken   so, ( 6/5 of the usual time ) - ( usual time ) = 10min   1/5 of the usual time = 10min   usual time = 10*5= 
<gadget id="calculator">10*5</gadget>
<output>50</output>
50 min   correct option is 50 min
<result>A</result>
Walking at 5/6 of its usual speed, a train is 10 minutes too late. Find its usual time to cover the journey.