Question

The number of ways in which Arnav, Ananyaa, Deepali and Neena can stand in straight line such that Deepali comes between Arnav and Ananyaa & also Neena does not come between Arnav and Ananyaa is?​

Answer 1

Step-by-step explanation:

Step-by-step explanation:

Given  

The number of ways in which Arnav, Ananyaa, Deepali and Neena can stand in straight line such that Deepali comes between Arnav and Ananya and also Neena does not come between Arnav and Ananyaa is?

• Let Arnav be represented by A, Ananyaa be represented by a, Deepali be represented by D, and Neena be represented by N.
• So it will be like this : A, a, D, N.
• They need to stand in straight line, such that D comes in between A and A, also N cannot come in between A and a.
• So it can be
• 1. A, a, D, N
• 2. A, D, a, N
• 3. N, A, a, D
• 4. A, a, N, D

So the number of ways will be 4 ways standing in a straight line.