Grade 12th passMagical Mathematics[Interesting Approach]
The total no.of signals that can be prepared from 7 different coloured flags is
The total no.of signals that can be prepared from 7 different coloured flags is
2 Answers
Khimraj
From how many colour signal is formed. If it is 2 then ways are 7C2 = 28.Hope it clears. If u have doubts then please clearify. And if u like my answer then please approve answer
Ritika Das
Since you have 7 different coloured flags, the number of signals that can be prepared is 7X6X5X4X3X2X1, or in short 7! or factorial of 7=5040, since every time all the coloured flags are used up, a colour is omitted for preparing a new pattern everytime.
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