Free Practice Question
PS · Problem Solving
sub-505
Combinations
In a task, 10 people need to be grouped into pairs. What is the total number of unique pairs that can be formed?
Answer Choices
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10
B
20
C
45
D
90
E
100
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Explanation
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Comments
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B
bharadwajNov 4, 2024
Thank for sharing!!!
Details
Difficulty
sub-505
Type
PS
Category