Concept:
In this coding pattern, each letter of the word is shifted one position forward in the English alphabet.
Step 1: Analyze the given example.
\[
A \rightarrow B
\]
\[
P \rightarrow Q
\]
\[
P \rightarrow Q
\]
\[
L \rightarrow M
\]
\[
E \rightarrow F
\]
Thus, every letter moves one step forward.
Step 2: Apply the same rule to “MANGO”.
\[
M \rightarrow N
\]
\[
A \rightarrow B
\]
\[
N \rightarrow O
\]
\[
G \rightarrow H
\]
\[
O \rightarrow P
\]
Step 3: Write the coded word.
\[
MANGO \rightarrow NBOHP
\]
Thus, the coded word is:
\[
\boxed{NBOHP}
\]