Two cars drove at the first speed of 80 km / h at 2 85 km / h in how many hours they will travel 1000 km.
| December 14, 2020 | education
Speed = Distances / Time => Time = Distances / Speed The first car will travel 1000 km in 1000/80 = 12.5 hours The second car will travel 1000 km in 1000/85 = 11.7 (not exactly) If you need them in total drove 1000 km, then 1000 / (80 + 85) = 1000/165 = about 6 hours
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