September 2018 2 130 Report
Kereta api mutiara berjalan selama 4 jam dengan kecepatan rata-rata 72 km/jam.KA ekonomi melintasi jalan yang sama selama 6 jam.berapakah kecepatan rata-rata KA ekonomi?berapa kkm jarak yang ditempuh KA mutiara selama 6 jam?
#pakai cara
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