Ngmer 200 solve urgently very important who will solve those best and blooming great 20 points I do not know how many he gives out SOLVE BEZ IKSOOOVV! ONLY ACTIONS!

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600:12=50. 50+10=60. 600:60=10ch1) 600 km/h of ÷ of 12 h = 50 km/h 2) 50 km/h + 10 km/h = 60 km/h 3) 600 km of ÷ of 60 km/h = 10 h Answer: 10 hours
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Answer add