Total distance = 150 + 250 = 400m. Speed = 54 * (5/18) = 15 m/s. Time = 400 / 15 = 26.67 seconds.
कुल दूरी = 150 + 250 = 400 मीटर। गति = 54 * (5/18) = 15 मीटर/सेकंड। समय = 400 / 15 = 26.67 सेकंड।