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A boy walks 5 km towards North, turns left and walk for 4 km, again turns left and walk for 3 km, then turns right and walk for 4 km and finally turns left and walks for 8 km. How far is he from his starting point?

A boy walks 5 km towards North, turns left and walk for 4 km, again turns left and walk for 3 km, then turns right and walk for 4 km and finally turns left and walks for 8 km. How far is he from his starting point? Correct Answer 10 km

The direction path of the boy is shown in the figure below,

[ src="//storage.googleapis.com/tb-img/production/20/06/Direction_Shweta_Kansal_7May20_15%20Q_Archana_Reviewed_HinRev_Manoj_D14.PNG" style="width: 433px; height: 378px;">

Applying Pythagoras theorem,

Distance between starting & ending point = √(62 + 82) = √100 = 10 km

Hence, distance between starting & ending point is 10 km

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