Symbolic Language - Use of Numbers for Letters
Introduction
In this type of symbolic language, letters are represented by numbers. Our task is to find which number corresponds to which letter through comparison.
Explanation Step by Step
By comparing two or more coded words, we identify the common letters and their corresponding common digits in the code.
Sub-topics
Use of Numbers for Letters
Mapping unique digits to specific alphabets based on their occurrence in different words.
Examples
Example 1
If "CAT" = 123 and "CAN" = 124, what is the code for "T"?
"CA" is common in both, and "12" is common in both codes. "T" is the only letter left in the first word, and "3" is the only digit left.
Answer = 3
Tricks and Shortcuts
* Identify the most repeated letter across all given words to find its number first.
* Use the process of elimination for letters that appear only once.
Common Mistakes
Assuming a direct positional match (e.g., the first letter is always the first digit) is a frequent error.
Practice Questions
Easy Questions
- If "PEN" = 456 and "TEN" = 756, what is the code for "N"?
- If "DOG" = 123 and "DIG" = 143, which digit represents "G"?
- If "SKY" = 890 and "FLY" = 760, which digit represents "Y"?
Medium Questions
- If "SING" = 1234 and "RING" = 5234, find the code for "ING".
- If "BLUE" = 6789 and "BLOW" = 6701, find the digits for "B" and "L".
- If "MAP" = 312 and "TAP" = 412, which digit represents "M"?
Hard Questions
- If "APPLE" = 12234 and "PALE" = 2534, find the digit representing "A".
- If "BOOK" = 1223, "LOOK" = 4223 and "BACK" = 1563, find the code for "B".
- If "TRAIN" = 98765 and "RAIN" = 8765, what is the digit for "T"?
Revision Summary
Consistent comparison and logical deduction are essential for solving number-based coding problems.