ReasoningAbility.com

Number-Letter Codes - Intermediate Level: mixed operations INTERMEDIATE

Boost your speed and accuracy with this adaptive style 📈 worksheet. Worksheet 15 of 30 presents 20 intermediate-level number-letter codes problems. Focus on mixed operations while practicing alphanumeric coding, letter-number mapping, positional codes. Difficulty: moderate complexity with mixed patterns. Perfect for mid-level test takers.

📝 Worksheet 15 of 30 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate level

What you'll learn in this worksheet:
Your progress through Number-Letter Codes
Worksheet 15 of 30 (50% complete)

Question 1

If a word's code is the product of its letter positions, what is 'BAD's code?
Product calculation: B=2 × A=1 × D=4 = 8
product, arithmetic

Question 2

If A=2, B=3, C=5, D=7, E=11... (prime numbers in order), what is 'ABC' coded as?
Prime coding: A→2, B→3, C→5 → concatenated = 235
prime, numbers, advanced

Question 3

For 'CAT', odd positions use position coding, even positions use shift coding. What is the result?
Alternating coding: C→3(pos), A→C(+2), T→20(pos) → 3C20
alternating, mixed, advanced

Question 4

If each letter is coded as the square of its position (A=1→1, B=2→4, C=3→9...), what is 'ACE' coded as?
Square coding: A=1²=1, C=3²=9, E=5²=25 → concatenated = 1925
square, exponential, advanced

Question 5

If each letter is coded as the sum of digits of its position (A=1→1, B=2→2, ..., J=10→1+0=1...), what is 'ACE' coded as?
Digit sum coding: A=1→digit_sum=1, C=3→digit_sum=3, E=5→digit_sum=5 → concatenated = 135
digits, sum, pattern

Question 6

If a word's code is the product of its letter positions, what is 'ACE's code?
Product calculation: A=1 × C=3 × E=5 = 15
product, arithmetic

Question 7

If each letter is coded as the square of its position (A=1→1, B=2→4, C=3→9...), what is 'BED' coded as?
Square coding: B=2²=4, E=5²=25, D=4²=16 → concatenated = 42516
square, exponential, advanced

Question 8

If letters are coded as 5-bit binary (A=1=00001, B=2=00010...), 'BIRD' is coded as?
Binary coding: B=2=00010, I=9=01001, R=18=10010, D=4=00100 → concatenated = 00010010011001000100
binary, advanced

Question 9

If vowels (A,E,I,O,U) are coded as 'V' and consonants as 'C', what is the code for 'CAT'?
Vowel/Consonant coding: C→C, A→V, T→C → CVC
vowel, consonant, pattern

Question 10

If A=26, B=25, C=24... Z=1 (reverse order), then 'ACE' is coded as?
Reverse coding: A=26 + C=24 + E=22 → concatenated = 262422
reverse, sequence

Question 11

If letters are coded as 5-bit binary (A=1=00001, B=2=00010...), 'CAT' is coded as?
Binary coding: C=3=00011, A=1=00001, T=20=10100 → concatenated = 000110000110100
binary, advanced

Question 12

For 'ACE', find the differences between consecutive letter positions (A=1,B=2...). Format as comma-separated values.
Positions: [1, 3, 5] → Differences: [2, 2]
difference, sequence, pattern

Question 13

If each letter is coded as its ASCII value (A=65, B=66...), what is 'BED' coded as?
ASCII coding: B=66, E=69, D=68 → concatenated = 666968
ascii, computer

Question 14

For 'ACE', find the differences between consecutive letter positions (A=1,B=2...). Format as comma-separated values.
Positions: [1, 3, 5] → Differences: [2, 2]
difference, sequence, pattern

Question 15

For 'LMN', find the differences between consecutive letter positions (A=1,B=2...). Format as comma-separated values.
Positions: [12, 13, 14] → Differences: [1, 1]
difference, sequence, pattern

Question 16

If each letter is shifted forward by 3 positions (A→D), what is 'CAR' coded as?
Shift coding: C→F(+3), A→D(+3), R→U(+3) → FDU
shift, caesar, cipher

Question 17

If A=2, B=3, C=5, D=7, E=11... (prime numbers in order), what is 'FISH' coded as?
Prime coding: F→13, I→23, S→67, H→19 → concatenated = 13236719
prime, numbers, advanced

Question 18

If a word's code is the sum of its letter positions (A=1,B=2...), what is 'FISH's code?
Sum calculation: F=6 + I=9 + S=19 + H=8 = 42
sum, arithmetic

Question 19

If each letter is shifted forward by 2 positions (A→C), what is 'DOG' coded as?
Shift coding: D→F(+2), O→Q(+2), G→I(+2) → FQI
shift, caesar, cipher

Question 20

If vowels (A,E,I,O,U) are coded as 'V' and consonants as 'C', what is the code for 'BAG'?
Vowel/Consonant coding: B→C, A→V, G→C → CVC
vowel, consonant, pattern
Previous Worksheet Next Worksheet