In each of the Following questions a sequence of numbers or letters that follow a definite pattern is given. Each question has a blank space. This has to be filled by the correct answer from the four given options to complete the sequence without breaking the pattern.
$$5 \parallel 3 : 34 :: 6 \parallel 3 : ..............$$
Askew : Straight :: Rough : .........
$$\frac{C}{L} : \frac{180}{27} :: \frac{E}{N} : .............$$