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kiruha [24]
3 years ago
10

A group consists of 10 kids and 2 adults. On a hike, they must form a line with an adult at the front and an adult at the back.

How many ways are there to form the line?a. 4.9!b. 2.99!c. 11!d. 11!/2
Computers and Technology
1 answer:
blsea [12.9K]3 years ago
6 0

Answer:

b. 2.9!

Explanation:

There are is a mistake in the question.

Suppose the group consist of 10 kids and 2 adults, the number of ways in which they can form the line is:

= 2! 10!

= 2× 1× 10!

= 2.10!

But since that is not in the given option.

Let assume that the group consists of 9 kids and 2 adults, the number of ways in which they can form the line is:

No of ways the kids can be permutated =  9 ways

No of ways the adult can be permutated  = two ways.

Thus; the number of ways in which they can form the line = 2! 9!

= 2 × 1× 9!

= 2.9!

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Answer:

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Explanation:

C#:

public static void Main(string[] args)

       {

           string input = Console.ReadLine();

               switch (input)

               {

                   case "A1":

                       Console.WriteLine("Footwear:");

                       Console.WriteLine("Shoes");

                       break;

                   case "B1":

                       Console.WriteLine("Tops:");

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                       break;

                   case "C1":

                       Console.WriteLine("Pants:");

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                       break;

                   case "A2":

                       Console.WriteLine("Footwear:");

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                       break;

                   case "B2":

                       Console.WriteLine("Tops:");

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                       break;

                   case "C2":

                       Console.WriteLine("Pants:");

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                   default:

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                       break;

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public static void main(String[] args)

   {

       Scanner myObj = new Scanner(System.in);  // Create a Scanner object

       String input = myObj.nextLine();

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               {

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                       break;

                   default:

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                       break;

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       }

3 0
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ycow [4]

Answer:

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Explanation:

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4 0
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