Katie is coloring a rainbow in her painting She knows the se

Katie is coloring a rainbow in her painting. She knows the seven colors of the rainbow but can\'t remember the order of the colors. How many different ways could the colors be arranged if each color is only used once?

5,040

128

28

720

Solution

The Numbers of different ways could the colors be arranged if each color is only used once = 7! = 7 x 6 x 5 x 4 x 3 x 2 x 1 = 5040