question_answer

Ram started from his house and travelled 3 km towards South. Then turned left and travelled 4 km. Then again he turned right and travelled 3 km. From there, he turned left and travelled 4 km. At what distance is he now from his house?

A) \[5k.m.\]                       

B) \[10k.m.\]

C) \[14k.m.\]                     

D) \[15k.m.\]

Correct Answer: B

Solution :

       \[\begin{align} & \sqrt{A{{B}^{2}}+B{{C}^{2}}}\Rightarrow \sqrt{{{6}^{2}}+{{8}^{2}}} \\ & \sqrt{36+64}\Rightarrow \sqrt{100}\Rightarrow  \\ \end{align}\]