Question

In an examination a candidate is required to pass at least four different subject out of 6 .then number of ways in which he can fail is :- a.) 13b.) 16c.) 24 d.) 42​

Answer 1

42 Ways Student can fail if In an examination a candidate is required to pass at least four different subject out of 6

Step-by-step explanation:

In an examination a candidate is required to pass at least four different subject out of 6

Students will Fail if he fail in  3 Subjects , 4 subjects  , 5 Subjects or 6 Subjects

fail in  3 Subjects   in ⁶C₃ = 20  Ways

fail in  4 Subjects   in ⁶C₄ = 15  Ways

fail in  5 Subjects   in ⁶C₅ = 6  Ways

fail in  6 Subjects   in ⁶C₆ = 1  Ways

Total Number of Ways Students can fail = 20 + 15 + 6 + 1

= 42

42 Ways Student can fail if In an examination a candidate is required to pass at least four different subject out of 6

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Answer 2

Answer:

d) 42 answer

hope it helps