SSC JE Mechanical Engineering 2017 Set 1 Solved Paper

In the given sequence, the position of O is increasing from the back to the front of each post.
XXXOXO ⇒ O placed in 4th and 6th position.
XXOXOX ⇒ O placed in 3rd and 5th position.
XOXOXX ⇒ O placed in 2nd and 4th position.
OXOXXX ⇒ O placed in 1st and 3rd position.
That is the correct answer.