To find the pattern, assign each letter its position in the alphabet:
A=1, B=2, C=3, ..., Z=26
For 'JAN':
J = 10, A = 1, N = 14
Sum = 10 + 1 + 14 = 25 ✓
For 'WED':
W = 23, E = 5, D = 4
Sum = 23 + 5 + 4 = 32 ✓
The pattern is the sum of alphabetical positions of all letters.
For 'MON':
M = 13, O = 15, N = 14
Sum = 13 + 15 + 14 = 42
Therefore, the code for 'MON' is 42.