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t = 20 menit =
Jaw = v =
=
= 2 × 5
= 10 km/jam
Jadi kecepatannya adalah 10 km/jam
=1/3 jam
v = s/t
=2 dibagi 1/3
=2 x 3/1
jadi kecepatannya =6 km/jam
sekian dari saya terima kasih ^_^