W walked 40 m toward West, took a left turn and walked 10 m. He then took a right turn and walked 30 m. He then took a right turn and walked 20 m. He again took a right turn and walked 30 m. How far was he from the starting point?
A
70 m
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B
60 m
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C
90 m
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D
Cannot be determined
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E
None of these
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Solution
The correct option is B 60 m According to the question W walked 40 m towards West and took a left turn.
He then took a right turn and walked 20 m
He again took a right turn and walked 30 m
We have to find out the distance between W's starting point and the end point. Join starting point and end point of W by dotted line.
W is (40 + 20) = 60 m away from the starting point.