Question 4
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A committee of 4 is chosen from 4 doctors and 6 engineers. In how many ways can it include at least one doctor?
- A 210
- B 80
- C 150
- D 195 Correct
Correct Answer: Option D
All: 10C4 = 210
No doctor: 6C4 = 15
210 − 15 = 195
Answer: 195
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