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kita samakan dalam waktu 6 jam.
rosi= 4,8 km/1jam= 4,8x6= 28,8 km/6 jam
(6jam= 1x6)
endang=9,8 km/2jam=9,8x3= 29,4 km/6jam
(6jam=2x3)
rosuli=9,6 km/1,5jam= 9,6x4= 38,4km/6jam
(6jam= 1,5x4)
rina= 14,4 km/2jam= 14,4x3= 43,2 km/6jam
(6jam= 2x3)
tercepat adalah rina.