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How many different \(5\)-person teams can be formed from a group of \(x\) individuals?

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by BTGmoderatorLU » Sat Oct 07, 2023 11:53 am

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A

B

C

D

E

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How many different \(5\)-person teams can be formed from a group of \(x\) individuals?

1) If there had been \(x + 2\) individuals in the group, exactly \(126\) different \(5\)-person teams could have been formed

2) If there had been \(x + 1\) individuals in the group, exactly \(56\) different \(3\)-person teams could have been formed

The OA is D
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Source: — Data Sufficiency |