Four married couples have bought 8 seats in the same row for a concert. In how many different ways can they be seated:
i. Without any restrictions?
ii. If each couple is to sit together?
iii. If all the men sit together to the right of all the women?

you could deduce the conclusion directly using the facts pertaining to the specific situation.

hope this .

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this