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                                                                                                                                      Sonaliwalks20mNorth.Thensheturnsrightandwalks30m.Then she again turns right and walks 35 m. In which direction and how many metres away is she from her original position?                                                                                                                        (SOF IMO 2017)

A.  15m, West                   
B.  \[15\sqrt{5m},\]South-East
C.  \[15\sqrt{5m},\]m, South-West                
D.  \[15\sqrt{3}\]m, South-East                                                                                                                               
Answer» C.  \[15\sqrt{5m},\]m, South-West                


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