Permutations And Combinations

Question
CBSEENMA11014160

How many signals can be given with 5 flags of different colours such that:

(i) exactly three flags can be used for a signal?

(ii) at most three flags are to be used for a signal?

(iii) at least three flags are to be used for a signal?

Solution

Solution not provided.
Ans. (i) 60, (ii) 85, (iii) 300

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