SOLUTION: In how many ways can 4 people be chosen and arranged in a straight line, if there are 12 people from whom to choose?

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Question 1138557: In how many ways can 4 people be chosen and arranged in a straight line, if there are 12 people from whom to choose?
Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
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In 12*11*10*9 = 11880 ways.      ANSWER


Explanation :


Any of 12 persons at the 1-st position.

Any of 11 remaining persons at the 2-nd position.

Any of 10 remaining persons at the 3-rd position.

Any of  9 remaining persons at the 4-th position.