SSC JE Mechanical Engineering 2017 Set 1 Solved Paper

In the given question, the location of F is progressing gradually.
Condition (1) ⇒ F EE F EE ⇒ The location of F is 1st and 4th.
Condition (2) ⇒ E F EE F E ⇒ The location of F is 2nd and 5th.
Condition (3) ⇒ EE F EE F ⇒ The location of F is 3rd and 6th.
Like this
Condition (4) ⇒ F EE F EE ⇒ The location of F is 4th and 1st.
That is the correct answer.