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Example 2 - Given 4 flags of different colours, how many - Fundamental principal of counting

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Example 2 Given 4 flags of different colours, how many different signals can be generated, if a signal requires the use of 2 flags one below the other? Let the signal be of the form The required number of signals = 4 × 3 = 12

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.