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Question

A postman was returning to the post office which was in front of him to the north. When the post office was 100 m away from him, he turned to the left and moved 50 m to deliver the last letter at Shantivilla. He then moved in the same direction for 40 m, turned to his right and moved 100 m. How many meters was he away form the post office.

A
0
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B
90
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C
150
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D
100
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Solution

The correct option is B 90
Clearly, the route of the postman is as shown. So, at the final point the distance of postman from post office.

=PD=AC=AB+BC=50+40=90 m


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