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3 years ago

11

From a group of 21 astronauts that includes 12 people with previous experience in space flight, a 3-person crew is to be selecte

d so that exactly 1 person in the crew has previous experience in space flight. How many different crews of this type are possible?

1 answer:

Vladimir79 [104]3 years ago

8 0

Answer:

3

Step-by-step explanation:

because

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