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A person startS from a point A and travels 3 km eastwards to B and then turns left and travels thrice that distance to reach C. He again turns left and travels five times the distance he covered between A and B and reaches his destination D the shortest distance between the starting point and the destination is :

A18KM

B12KM

C16KM

D15KM

Answer:

D. 15KM

Read Explanation:



shortest distance AD = √(AE² + DE²)


= √(9² + 12²)


= √(81 + 144)


= √(225)


= 15 KM


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