Question 169

In a code the letters of the English alphabet are coded by numbers as follows.

$$A\leftrightarrow1, Z\leftrightarrow2, B\leftrightarrow3, Y\leftrightarrow4, C\leftrightarrow5, X\leftrightarrow6 .....$$

Then the code for COME TODAY is

Solution

The entire alphabet can be coded as:
(A,Z) = (1,2) (B,Y) = (3,4) (C, X) = (5,6)
(D,W) = (7,8) (E,V) =  (9,10) (F,U) = (11,12)
(G,T) = (13,14) (H,S) = (15,16) (I,R) = (17,18)
(J,Q) = (19,20) (K,P) = (21,22) (L,O) = (23,24)
(M,N) = (25,26)

Hence, COME TODAY gets coded as: 5,24,25,9  14,24,7,1,4


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