A person travels 12 km due North, then 15 km due East, after that 15 km due West and then 15 km due South. How far is he from the starting points? 6 km 12 km 33 km 60 km
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let O be the starting point and P, Q and R the positions after every movement. Hence, Distance from the starting point = Distance of final position R from O = OR = 18 – 12 = 6 km.
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