1. Aperson starts from a point P and walks 1 km along a straight line and then turns to his right and walks straight for 2 2 km. After that, he turns to his left and walks for 3 km to reach a point Q. What the straight line distance of the point from the point P?
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The movement of the person are as shown in fig. Draw AE ⊥ CD. DE = (CD-CE)=(15-3)Km = 12 Km. ∴ Required distance = AD = 15 Km.
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