Question

how many of the five pairs listed below are exact duplicates?

9543 9534
89029 89029
749497 749497
8590324 8590234
63972908 63972908

1
2
3
4
5

Explanation:

Compare each pair of numbers

• Pair 1: \(9543\) vs \(9534\) (Not identical: \(43

eq 34\))

• Pair 2: \(89029\) vs \(89029\) (Identical)
• Pair 3: \(749497\) vs \(749497\) (Identical)
• Pair 4: \(8590324\) vs \(8590234\) (Not identical: \(324

eq 234\))

• Pair 5: \(63972908\) vs \(63972908\) (Identical)

Count the exact duplicates

• The identical pairs are Pair 2, Pair 3, and Pair 5.
• Total count of exact duplicates is \(3\).

Answer:

• 1
• 2
• 3 (Correct answer)
• 4
• 5