a train covers a distance at a speed of 240 kmph in 5 hours . to cover the same distance in 5 / 3 hours , it must travel at a speed of ?
"distance = 240 * 5 = 1200 km required speed = 1200 * 3 / 5 = 720 km / hr answer is d"
divide(multiply(240, const_3.0), 5)