How many different signals can be made by hoisting 6 differently c | Filo
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Class 11

Math

Algebra

Permutations and Combinations

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How many different signals can be made by hoisting differently coloured flags one above the other, when any number of them may be hoisted at once?

  1. 1956
  2. 1955
  3. 1900
  4. 1901
Correct Answer: Option(a)
Solution: Here the flags are placed one above the another so, the order is important => we will be using permutations
We can hoist flags to ,
 ways
Hence, option 'A' is correct.
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