question_answer

The length and breadth of a room are 8 m and 6 m respectively. A cat runs along all the four walls and finally along a diagonal order to catch a rat. How much total distance is covered by the cat?

A) 10 m    

B)                    14 m

C) 38 m  

D)       48 m

E) None of these

Correct Answer: C

Solution :

Explanation Option [c] is correct because required distance \[=8+6+8+6+~\sqrt{{{8}^{2}}+{{6}^{2}}}=28+=28+10=38\text{ }m\]