Question

Give 5 flag of different colors,how many different signal s can be generated if each requires the use of 3 flag one below the other.
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Answer 1

Answer:

Given :

• 5 different colour flags.

To find:

First flag=Upper flag=5 choices

Second flag=Lower flag=4 choices

• Number of different signals, using 2 flags We have to select two flags one after the other. Therefore the upper flag (first flag) can be selected in 5 ways. Since both flags must be different colour, lower flag (second flag) can be selected in 4 ways.

∴ Number of different signals = 5 x 4 = 20

Step-by-step explanation:

$Hope \: it \: helps!$

Answer 2

Answer:

Given :

Given :5 different colour flags.

Given :5 different colour flags.To find:

Given :5 different colour flags.To find:First flag=Upper flag=5 choices

Given :5 different colour flags.To find:First flag=Upper flag=5 choicesSecond flag=Lower flag=4 choices

Given :5 different colour flags.To find:First flag=Upper flag=5 choicesSecond flag=Lower flag=4 choicesNumber of different signals, using 2 flags We have to select two flags one after the other. Therefore the upper flag (first flag) can be selected in 5 ways. Since both flags must be different colour, lower flag (second flag) can be selected in 4 ways.

Given :5 different colour flags.To find:First flag=Upper flag=5 choicesSecond flag=Lower flag=4 choicesNumber of different signals, using 2 flags We have to select two flags one after the other. Therefore the upper flag (first flag) can be selected in 5 ways. Since both flags must be different colour, lower flag (second flag) can be selected in 4 ways.∴ Number of different signals = 5 x 4 = 20