Question

00. Teacher wanted to make seating arrangement of
four children P, Q, R, S in such a way that Pand S
are always together. In how many ways she can
do so ?​

Answer 1

Answer:

4 arrangements out of 16

Answer 2

Answer:

12

Step-by-step explanation:

Let us consider P,S to be a single student.

Therefore now we have to permutate between 3 students and she can jugle the P and Q too.

Therefore no of ways = 3!*2! = 6*2= 12