question_answer

Direction: In each of the following questions arrange the following words as per order in the dictionary.

Kailash walks 3 kms to East and turns South and walks 4 kms. Again turns West and walks 6 kms. How far is he from the starting point?

A)  6 kms    

B)  7 kms

C)  3 kms    

D)  5 kms  

Correct Answer: D

Solution :

  \[AD=\sqrt{{{(AE)}^{2}}+{{(DE)}^{2}}}\] \[=\sqrt{{{(4)}^{2}}+{{(3)}^{2}}}\] \[=\sqrt{16+9}=\sqrt{25}=5\,km.\]