Speed = $54 imes 5/18 = 15$ m/s. Total Distance = $150 + 250 = 400$m. Time = $400 / 15 = 26.67$ seconds.
गति = $54 imes 5/18 = 15$ मीटर/सेकंड। कुल दूरी = $150 + 250 = 400$ मीटर। समय = $400 / 15 = 26.67$ सेकंड।