hey
this question is usually asked in the question papers, and we pick the wrong answer (wooooooot)
why? because we dont have a mirror.
who said so? u can make ur own mirror
see that pic in attachments, it explains everything
use ur calculater screen as a mirror. and try to get the image of the object on it.
in the question if the mirror is on the right side, then put the calculater on the same side, not on the opposite side
in this case (attached pic) mirror is on the right side.
this method is Dedicated to my physics teacher Mrs.Nahla, a great teacher!
hope this helps