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kompoz [17]
3 years ago
6

In how many ways can 7 people line if A needs to be first or last and B needs to be in the middle

Mathematics
1 answer:
12345 [234]3 years ago
8 0

Answer:

<em>Assuming person A and person B are part of the 7 people</em>, there are 10 ways the 7 people can line up if A needs to be first or last and B needs to be in the middle.

Step-by-step explanation:

There are 2 places for A (first, last) and 5 places for B (anywhere but first or last). 2 x 5 = 10.

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