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In a question paper, there are four multiple-choice questions. Each question has five choices with only one choice for its correct answer. What is the total number of ways in which a candidate will not get all the four answers correct

In a question paper, there are four multiple-choice questions. Each question has five choices with only one choice for its correct answer. What is the total number of ways in which a candidate will not get all the four answers correct?

(a)

19

(b)

120

(c)

624

(d)

1024

Answer:

(c)

Explanation

The total number of ways to not get all answers correct is the complement of the one correct answer out of 1024 combinations.