In how many ways can a delegation of 3 teachers and 4 students be selected from a pool of 6 teachers and 8 students?
Answer and explanation
Correct answer: B.
- Step 1: Choose 3 teachers from 6: .
- Step 2: Choose 4 students from 8: .
- Step 3: Fundamental counting principle: ways.
Answer
1,400.
Why not the others: '' divides by 2; '' doubles product; '' chooses 2 teachers.
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