question_answer

Arun started walking from point 'P' towards North and walked 30 meters. He then turned left and walked 40 meters and reached 'Q'. At what minimum straight line distance is the point 'Q' from 'P' and in which direction?

A) 50 meters North-East      

B) 60 meters North-West

C) 50 meters North-West     

D) 80 meters North-West

E) None of these

Correct Answer: C

Solution :

Explanation Option [c] is correct. \[\begin{align}   & ab=\sqrt{b{{c}^{2}}+c{{a}^{2}}} \\  & ab=\sqrt{{{30}^{2}}+{{40}^{2}}}=\sqrt{2500}=50 \\ \end{align}\] Starting Point ?P?