A problem is given below. Instead of trying to solve that problem, state a simpl

Question

A problem is given below. Instead of trying to solve that problem, state a simpler problem and solve it instead. Twelve people are being honored for their work in reducing pollution. In how many ways can we line up these people for a picture? Which of the following is a simpler version of the given problem? O A. In how many ways can twelve people be selected from a group of fifteen people? B. In how many ways can four people be selected from a group of twelve people? O C. In how many ways can fifteen people be lined up for a picture? O D. In how many ways can four people be lined up for a picture? What is the solution to this simpler problem? ways

Explanation / Answer

Answer is (c) in how many ways can fifteen people be lined up for a picture.

Solution of the problem:

total ways to line up 12 people : 12!

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