Town X and Town Y were 570 km apart.
John travelled from Town X to Town Y at an average of 68 km/h. At the same time, Kelly travelled from Town Y to Town X at an average speed of 84km/h. How far would
John have travelled when they meet on the way ?
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68km/h+84km/h=152km/h
570km/152km/h=3,75h
3,75h*68km/h=255km
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