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Mathematics, 24.12.2020 22:00 ooEVAoo

The shortest route from London to York is 200 miles. A lorry is expected to take 4 hours to travel this route.
The lorry actually travels by a different route which increases the distance by 20%, but it still arrives in 4 hours.
By how many more mph than the expected speed does the lorry travel?

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The shortest route from London to York is 200 miles. A lorry is expected to take 4 hours to travel...
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