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In an examination there are there a...

In an examination there are there are three multiple choice questions and each question has 4 choices Number of sequences in which a student can fail to get all answer correct is

A

11

B

15

C

80

D

63

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The correct Answer is:
D
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DIPTI PUBLICATION ( AP EAMET)-PERMUTATIONS & COMBINATIONS-EXERCISE 1B (COMBINATIONS )
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