 <translate> Tunanin: Tsarin tafkin shine 4 * 15 = 60 mil. Yana yin iyo a gudun 60 / 20 = 3 mph. Don haka yana yin tuƙi da saurin 3 * 2 = 6 mph. Wannan yana nufin yana daukan shi 60 / 6 = 10 hours zuwa raft a kusa da tafkin. <ibo> Ntụgharị uche: Obosara nke ọdọ mmiri ahụ bụ 4 * 15 = 60 kilomita. Ọ na-egwu mmiri n'ọsọ 60 / 20 = 3 mph. Ya mere, ọ na-eji ọsọ nke 3 * 2 = 6 mph. Nke ahụ pụtara na ọ na-ewe ya awa 60 / 6 = awa 10 ịkwọ ụgbọ gburugburu ọdọ mmiri ahụ. 