Free Practice Question
PS · Problem Solving
sub-505
Combinations
In Jamie's wardrobe, there are four shirts and three pairs of trousers. How many unique outfit combinations (of shirt & trousers) can Jamie create?
Answer Choices
Correct answer marked belowA
3
B
4
C
9
12
Correct
E
15
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Explanation
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Official Explanation
Official
In Jamie's wardrobe, there are four shirts and three pairs of trousers. To find the number of unique outfit combinations consisting of one shirt and one pair of trousers, we multiply the number of shirts by the…
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Comments
2
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M
MohammadMar 24, 2025
cheers!
M
MadonnaMay 22, 2024
Thank you very much!
What this question tests
What it tests
Whether you can count arrangements and selections correctly — permutations vs. combinations.
Common trap
Overcounting: treating a selection as ordered when order does not matter, or forgetting to divide by duplicates.
Details
Difficulty
sub-505
Type
PS
Category