USPS Numeric Sequence Comparison 2 — Questions and Answers
Question 1: Compare the two sequences and identify the error: Sequence A: 7842 3916 5027 4483 Sequence B: 7842 3916 5027 4483
- Digit error in group 1
- Digit error in group 2
- Digit error in group 3
- The sequences are identical (Correct answer)
Correct answer: The sequences are identical
Both sequences are exactly the same with no differences in any group.
Question 2: Compare the two ZIP+4 codes: Code A: 90210-3847 Code B: 90210-3874
- The base ZIP codes differ
- The last two digits of the extension are transposed (Correct answer)
- The first two digits of the extension differ
- The codes are identical
Correct answer: The last two digits of the extension are transposed
The extension digits '47' in Code A appear as '74' in Code B, indicating a transposition error.
Question 3: A postal worker checks a tracking number: Original: 9400 1118 9922 3301 4567 Entered: 9400 1118 9922 3301 4576
- Error in group 1
- Error in group 2
- Error in group 3
- Error in group 5 (Correct answer)
Correct answer: Error in group 5
Group 5 shows '4567' in the original but '4576' in the entered version — the last two digits are swapped.
Question 4: Which pair of numeric sequences contains an error? Option A: 33142 / 33142 Option B: 77801 / 77801 Option C: 48205 / 48025 Option D: 60601 / 60601
- Option A
- Option B
- Option C (Correct answer)
- Option D
Correct answer: Option C
Option C has '48205' vs '48025' — the middle two digits '20' are transposed to '02'.
Question 5: Compare the route numbers: Route A: 0044-2293-1187 Route B: 0044-2293-1178
- Groups 1 and 2 differ
- The last two digits of group 3 are transposed (Correct answer)
- A digit is missing in group 3
- The routes are identical
Correct answer: The last two digits of group 3 are transposed
Route A ends in '87' while Route B ends in '78', indicating the final two digits were transposed.
Question 6: A mail sorter verifies a barcode string: Original: 5 2 9 1 4 7 3 8 6 Entered: 5 2 9 1 4 7 8 3 6
- Positions 1 and 2 are swapped
- Positions 4 and 5 are swapped
- Positions 7 and 8 are swapped (Correct answer)
- No error exists
Correct answer: Positions 7 and 8 are swapped
Positions 7 and 8 are '3 8' in the original but '8 3' in the entered version.
Question 7: Compare the two apartment number sequences: List A: 101, 102, 104, 105, 106 List B: 101, 102, 103, 105, 106
- List A skips a number (Correct answer)
- List B skips a number
- Both lists are identical
- Both lists have errors
Correct answer: List A skips a number
List A is missing 103 between 102 and 104, while List B has the correct sequence 101–106 minus 104.
USPS Numeric Sequence Comparison 2
Compare the two sequences and identify the error:
Sequence A: 7842 3916 5027 4483
Sequence B: 7842 3916 5027 4483