Question

One day Ravi left home and cycled $10$ kms southwards turned right and cycled $5$ kms and turned right and cycled $10$ kms and turned left and cycled $10$ kms. How many kilometres will he have to cycle to reach his home straight?

• A. $10$ kms
• B. $15$ kms
• C. $20$ kms
• D. $25$ kms

Answer 1

The correct option is B $15$ kms

According to the figure, Ravi starts from $A$ to $B,$ then to $C$ and $D$ and finally he is at $E.$

So, he has to go back a distance $EA$ which is equal to $ED+DA=10+5$ i.e. $15$ km.

option C.