In a code language, ‘BEAM’ is written as ‘AFZN’, and ‘BILL’ is written as ‘AJKM’. How will ‘WELL’ be written in that language?

The correct answer is VFKM.

Let us analyze the pattern of the coding language by looking at the given examples step-by-step.

Example 1: "BEAM" is written as "AFZN"
Let's align each letter of the original word with the coded word:
B → A (The letter before B is A, which is a shift of -1)
E → F (The letter after E is F, which is a shift of +1)
A → Z (The letter before A, wrapping around the alphabet, is Z, which is a shift of -1)
M → N (The letter after M is N, which is a shift of +1)

So, the pattern follows alternating shifts of -1 and +1: [-1, +1, -1, +1].

Example 2: "BILL" is written as "AJKM"
Let's check if the same pattern applies:
B → A (B - 1 = A)
I → J (I + 1 = J)
L → K (L - 1 = K)
L → M (L + 1 = M)

The pattern is confirmed to be [-1, +1, -1, +1].

Applying the pattern to "WELL":
W → W - 1 = V
E → E + 1 = F
L → L - 1 = K
L → L + 1 = M

Therefore, "WELL" will be coded as VFKM.