Decoding Letter Codes: Finding 'E'

This problem requires finding the specific code for the letter 'E' using a provided letter-to-number code system. We can solve this by comparing the two given coded words.

• Given: 'ROAD' is coded as '8657'.
• Given: 'DEAR' is coded as '4567'.

Comparing Coded Words

We compare the letters present in each word and the digits in their respective codes:

• Word: ROAD
  Letters: {R, O, A, D}
  Code Digits: {8, 6, 5, 7}
• Word: DEAR
  Letters: {D, E, A, R}
  Code Digits: {4, 5, 6, 7}

Identifying Unique Codes

By observing the differences and similarities:

• The letter 'O' is unique to 'ROAD' among the two words. The digit '8' is unique to the code '8657'. This implies O = 8.
• The letter 'E' is unique to 'DEAR' among the two words. The digit '4' is unique to the code '4567'. This implies E = 4.

The common letters {R, A, D} map to the common digits {5, 6, 7}, which supports the unique assignments.

Code for 'E'

Based on the direct comparison and identification of unique elements, the code for the letter 'E' is 4.