A set of 6 questions contains true/false type questions. Maximum how many students can take the test if all the students answer differently from others and must attempt all the questions?

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128

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256

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Solution

The correct option is B 64
A question can be answered in two ways. i.e., either true or false. Hence all the 6 questions can be answered in $2 \times 2 \times 2 \times 2 \times 2 \times 2 = 2^{6} = 64$ ways.
Thus there can be maximum 64 students.

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A set of 6 questions contains true/false type questions. Maximum how many students can take the test if all the students answer differently from others and must attempt all the questions?

The correct option is B 64A question can be answered in two ways. i.e., either true or false. Hence all the 6 questions can be answered in 2×2×2×2×2×2=26=64 ways. Thus there can be maximum 64 students.

The correct option is B 64
A question can be answered in two ways. i.e., either true or false. Hence all the 6 questions can be answered in $2 \times 2 \times 2 \times 2 \times 2 \times 2 = 2^{6} = 64$ ways.
Thus there can be maximum 64 students.