First slide

Combinations

Question

A question paper has 5 questions. Each question has an alternative. The number of ways in which a student can attempt atleast one question is

Easy

A

_{$2^{5} - 1$}
B

_{$3^{5} - 1$}
C

_{$3^{4} - 1$}
D

_{$2^{4} - 1$}

Solution

The number of ways in which a student can attempt atleast one question is _{$= 3^{5} - 1$}

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