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So finally she have to travel 20 km more to reach home.
Manick walked 40 metres towards north, took a left turn and walked 20 metres. He again took a left turn and walked 40 metres. How far and in which direction is he from the starting point?
The movements of Manick are as shown in figure (A to B, B to C and C to D). Clearly, ABCD is a rectangle and so AD = BC = 20 m. Thus, D is 20 m to the west of A.
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