1.

How many different ways can four team members from the group of fifteen be lined up for a photograph?

Answer»

To form a TEAM of 4 from the 15 people:

Number of choices for the first PERSON = 15 (That is, any of the 15 people)

Number of choices for the second person = 14 (That is, any of the 14, excluding the one chosen earlier)

Number of choices for the third person = 13 (That is, any of the 13, excluding the ONES chosen earlier)

Number of choices for the fourth person = 12 (That is, any of the 12, excluding the ones chosen earlier)


Find the number of possible combinations:

Number of possible combinations = 15 x 14 x 13 x 12 = 32760


Answer: 32760 different combinations



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