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Answer :
The number of different signals consisting of 9 flags that can be made using 4 white flags, 3 red flags, and 2 blue flags: 1260
What is the combination?
In mathematics, Combination is a term which tells us how many ways there are for the selection of a few things without considering their order.
Formula for selection of a objects from the n objects,
N = ⁿCₐ
Given that,
The number of different signals consisting of 9 flags,
4 white flags, 3 red flags, and 2 blue flags.
The total numbers of signals can be made by 9 flags
= 9î/(4î)(3î)(2î)
= [9x8x7x6x5] / [3x2x1][2x1]
= 9 x 4 x 7 x 5
= 1260
Hence, the number of different signals is 1260
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