Concept:
In coding–decoding problems, each letter is assigned a specific numerical value.
We determine the mapping of letters to numbers using the given coded words.
Step 1: Use the coding of ‘PLAYER'.
\[
PLAYER \rightarrow 543976
\]
Thus,
\[
P = 5,\quad L = 4,\quad A = 3,\quad Y = 9,\quad E = 7,\quad R = 6
\]
Step 2: Verify using ‘DARE'.
\[
DARE \rightarrow 8367
\]
From this,
\[
D = 8,\quad A = 3,\quad R = 6,\quad E = 7
\]
This confirms the previous letter-number assignments.
Step 3: Write the code for ‘YELP'.
Using the mapping:
\[
Y = 9,\quad E = 7,\quad L = 4,\quad P = 5
\]
Thus,
\[
YELP = 9745
\]
Step 4: Final coded number.
\[
\boxed{9745}
\]