Wonderlic Cognitive Ability Practice Test

To determine how many of the five pairs listed are exact duplicates, we need to analyze each pair.

The first pair, 6845-6845, consists of identical numbers, which makes it a duplicate.

The second pair, 45641-45641, also consists of identical numbers, confirming it as another duplicate.

For the third pair, 987878-987788, the two numbers differ in the last two digits. Since they are not identical, this pair is not a duplicate.

The fourth pair, 124555-123555, features different middle digits, indicating that these two are also not duplicates.

Finally, in the fifth pair, 9898547-9898745, the sequence of digits is different, meaning this pair does not constitute a duplicate as well.

Based on this analysis, we find that two pairs (6845-6845 and 45641-45641) are exact duplicates. Therefore, the correct answer reflects the exact number of duplicate pairs identified.