 
 <translate> Gudun jirgin ruwa a cikin ruwa mai zaman kanta = (60 + 80) / 2 = 70 kmph. Saurin rafin = (80-60) / 2 = 10 kmph Amsar karshe: (A). <yor> Iyara ọkọ oju omi ni omi ti o dakẹ = (60+80)/2 = 70 kmph. Ìyára tí ìsun omi ń yára yára = (80-60)/2 = 10 kmph Ìdáhùn tí ó kẹ́yìn: (A). 