A train covers a certain distance at a speed of 400kmph in 3 hours. To cover the same distance in 2 2/3 hours, it must travel at a speed of
Options
A) 480km/hr  B) 450km/hr  C) 550km/hr  D) 750km/hr  E) 650km/hr
Explanation:   Distance = 400Ã—3 = 1200km   Required speed = (1200Ã— 3/8) = 450km/hr   Answer: Option 450km/hr
<result>B</result>
A train covers a certain distance at a speed of 400kmph in 3 hours. To cover the same distance in 2 2/3 hours, it must travel at a speed of