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Mathematics, 20.05.2021 20:40 ehaynie

a motorist traveled 60 km in 1 hour and a further 90 km in 2 hours. His average speed in km/hr, for the entire journey was​

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a motorist traveled 60 km in 1 hour and a further 90 km in 2 hours. His average speed in km/hr, for...
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