A train travels along a track from Aytown to Beetown. The map shows the route the train takes.
The distance travelled by the train between the towns is 210km.
It moves at an average speed of 70km/ h.
How long does the journey take?
1 )
less than ${{70} \over {210}}$ hours
2 )
exactly ${{70} \over {210}}$ hours
exactly ${{210} \over {70}}$ hours
4 )
more than ${{210} \over {70}}$ hours
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