Analogy - Verbal and Reasoning

Directions to SolveIn each of the following questions find out the alternative which will replace the question mark.
Q1:

K/T : 11/20 :: J/R : ?

A 10/18

B 11/19

C 10/8

D 9/10

ANS:A - 10/18

Explanation: In Eq. alphabets positions of K and T are 11 and 20 respectively. Similarly positions of J and R are 10 and 18.