Shashank walks a certain distance, say X m, towards the west, then turns left and walks 35 m, and then turns right and walks 18 m. From there, he turns left and walks 9 m, and then turns left again and walks 60 m. From there, he turns left and walks 9 m, and then turns left again and walks 12 m. He finally turns right and walks 35 m to reach a point that is exactly 10 m to the east of the starting point. What is the value of X?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 20
Using the above information we can draw the following diagram:

From the figure,
AB = EF - CD - GH - IA
AB = 60 - 18 - 12 - 10
AB = x = 20m