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Question

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?

A
32
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B
64
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C
128
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D
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 2×2×2×2×2×2=26=64 ways.
Thus there can be maximum 64 students.

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