A train covers a certain distance at a speed of 230kmph in 4 hours. To cover the same distance in 2 2/3 hours, it must travel at a speed of Select:
A) 220km/hr B) 320km/hr C) 345km/hr D) 450km/hr E) 650km/hr
Explanation:   Distance = 230Ã—4 = 920km   Required speed = (920Ã— 3/8) = 345km/hr   Answer: Option 345km/hr
<result>C</result>
A train covers a certain distance at a speed of 230kmph in 4 hours. To cover the same distance in 2 2/3 hours, it must travel at a speed of