A train covers a certain distance at a speed of 340kmph in 4 hours. To cover the same distance in 2 3/4 hours, it must travel at a speed of Choose the correct choice from the following answers:
A) 495km/hr	B) 420km/hr	C) 450km/hr	D) 550km/hr	E) 650km/hr
Explanation:   Distance = 340Ã—4 = 1360km   Required speed = (1360Ã— 4/11) = 495km/hr   495km/hrnswer: Option 495km/hr
<result>A</result>
A train covers a certain distance at a speed of 340kmph in 4 hours. To cover the same distance in 2 3/4 hours, it must travel at a speed of