## Given 5 flags of different colours, how many different signals can be generated if each signal requires the use of 2 flags, one below the ot

Question

Given 5 flags of different colours, how many different signals can be generated if each signal requires the use of 2 flags, one below the other?​

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1 month 2021-08-16T16:42:46+00:00 2 Answers 0 views 0

## Answers ( )

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### • Given:–

5 flags of different colours

2 flags required for Signal

### SOLUTION:-

Number of flags possible for upper flag =

One of the flag is taken, therefore, the number of flags remaining for lower flag in the signal is

The number of ways in which signal can be given

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Therefore, different signals can be generated if each signal requires the use of 2 flags, one below the other.

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Given 5 flags of different colours, how many different signals can be generated if each signal requires the use of 2 flags, one below the other?

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➡️Given 5 flags of different colours

Given 5 flags of different coloursWe know the signal requires 2 flags.

➡️The number of flags possible for upper flag is 5.

➡️Now as one of the flag is taken, the number of flags remaining for lower flag in the signal is 4.

➡️The number of ways in which signal can be given = 5 × 4 = 20.

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