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Class 11MathematicsPermutations and CombinationsFundamental principle of countingExpert
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In an online form, a user chooses (1) of (2) optional languages, (1) of (4) themes, and (2) of (3) security questions with order. How many selections are possible?

Answer and explanation

Correct answer: (48)

Languages and themes give (2\times4), and ordered security questions give (3\times2) ways. The total is (2\times4\times3\times2=48).

Related tags

PermutationsCombinationsCounting PrincipleClass 11ExpertFundamental Principle Of CountingPermutations And CombinationsMathematics
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