Difficulty: Easy
Correct Answer: 3136
Explanation:
Introduction / Context:
This is a direct combinations problem: select a fixed count from each of two disjoint groups (men and women) where order is irrelevant and no role distinctions exist within a chosen team.
Given Data / Assumptions:
Concept / Approach:
Use combinations independently on each group and multiply: total ways = C(8,3) * C(8,3). This is the fundamental rule of counting for independent choices across disjoint sets.
Step-by-Step Solution:
C(8,3) = 8*7*6 / (3*2*1) = 56.Total teams = 56 * 56 = 3136.
Verification / Alternative check:
Symmetry implies selecting either gender first yields the same multiplication. No ordering or role labels are present, so there is no extra factorial factor.
Why Other Options Are Wrong:
112 and 720 come from misusing permutations or partial counts; 112896 multiplies by spurious orderings.
Common Pitfalls:
Accidentally using permutations (which would imply ordered roles) or adding instead of multiplying across independent gender selections.
Final Answer:
3136
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