To find the number of permutations, simply multiply the possible number of outcomes for the first position times the possible number of outcomes for the second position, and so on. Just remember that the group gets smaller as you go along.
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Below is the example from the previous page. Type your answers into the Text Boxes provided, and then click Continue. |
Five runners run in a race. The runners who come in first, second, and third place will win gold, silver, and bronze medals respectively. How many possible outcomes for gold, silver, and bronze medal winners are there?
Any of the 5 runners could come in first place, leaving 4 runners who could come in second place, leaving 3 runners who could come in third place, for a total of: 5 x 4 x 3 = 60 possible outcomes for gold, silver and bronze medal winners.
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Video Lessons and 10 Fully Explained Grand Tests
Large number of solved practice MCQ with explanations. Video Lessons and 10 Fully explained Grand/Full Tests.