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forsale [732]
1 year ago
14

A committee must be formed with 4 teachers and 5 students. If there are 11 teachers

Mathematics
1 answer:
Ivenika [448]1 year ago
7 0

Answer:

11C4 × 11C5

\binom{11}{4}   \times  \binom{11}{5}  =  \frac{11 \times 10 \times 9 \times 8}{4 \times 3 \times 2 \times 1}   \times  \frac{11 \times 10 \times 9 \times 8 \times 7}{5 \times 4 \times 3 \times 2 \times 1}  = 330 \times 462 = 152460

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