A man moves $3 k m$ towards East then moves $5 k m$ towards South and finally $9 k m$ towards North. How far is he from the starting point.

3 k m

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4 k m

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5 k m

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6 k m

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Solution

The correct option is C $5 k m$
$A B = \sqrt{3^{2} + 4^{2}} = 5 k m$ [Pythagoras theorem].

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