GRE Math Review Questions

Category - GRE Math

Sally, Nick, Bobby, and Kenny are standing in a line. How many different ways can they be ordered?
  1. 8
  2. 16
  3. 24
  4. 32
Explanation
Answer: C - Sally, Nick, Bobby, and Kenny can be ordered 24 different ways in line. You get the answer by multiplying 4 by each number that precedes it.Since there are 4 children, then4x3x2x1=24.
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