Haryana Police Constable Model Paper 2

Given:
3 married couples have bought 6 seats in the same row for a talent show.
Formula used:
n! = n × (n – 1) × (n – 2) ……………………….3 × 2 × 1
Calculation:
Each couple sits in pairs- same as the above, but there are 3 couples so 3!
Each couple also has two ways of sitting
So we need to multiply this by 2 for each so 3 time’s total.$\Rightarrow 3!\times {\left(2\right)}^3$
⇒ 3 × 2 × 1 × 8 =48
∴ Different ways can they be seated if each couple is to sit together 48