Jawabanmu

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2014-02-23T11:18:55+07:00
108 km => 1 jam => 60 menit 
1 menit = 108 : 60 = 1,8 km
1 5 1
2014-02-23T11:20:52+07:00
= 108000m/60 menit
=1800m/menit ( 1,8km/menit )