Sam walked 30 m South, then 15 m left (East), then 20 m right (South), then 15 m right (West). How far is he from the starting point?

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• A 40 m
• B 50 m
• C 70 m
• D 95 m

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Answer: B. 50 m

The East and West moves (15 m each) cancel. Total distance south = 30 + 20 = 50 m.

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