At the end of the game, the children will travelled a distance of 36m from where they started.
From the question, it is given that two children running 10 m north, 6 m east, then 2 m south.
Whenever a question is asking "how far" that means the distance travelled. Distance is scalar quantity. That is, we can only consider its magnitude by adding them up.
Distance = 10 + 6 + 2 = 18m
Since it involves two children, we will multiply it by 2
Total distance = 2 (18) = 36m
Therefore, at the end of the game, the children will travelled a distance of 36m from where they started.
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