Jawabanmu

2014-02-03T14:35:30+07:00
S= v x t . v =40 , t= 11,25 jam . s atau jarak = 40 x 11,25 = 450 km . (dicek ulang ya)
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2014-02-03T14:37:51+07:00
V =40 km /jam
t = 11 jam 15 menit = 11,25 jam
s = v × t = 40 × 11,25 =450 km