self Maths Puzzle

The clinic of a Doctor faces the West. From the backside of his clinic, he walks straight 100 metres then turn to the left and walks 100 metres again. Finally, he turns towards right and stops after walking 50 metres. Now in which direction is Doctor from the starting point?

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self Other Question

A train running at 72 kms per hour crosses acoconut tree standing by the side of the track in 7 seconds.The length of the train is: If ‘P + Q’ means ‘P is the brother of Q’; ‘P × Q’ means ‘P is the father of Q’, ‘P ÷ Q’ means ‘P is the mother of Q’; which of the following would mean ‘R is the son of M’?