The length of a room is 50% more than its breadth. The cost of carpeting the room at the rate of 38.50 m2 is 924 and the cost of papering the walls at 33.30 m2 is 3214.50. If
the room has one door of dimensions 1 m x 2 m and two windows each of dimensions
1 m x 1.5 m, find the dimensions of the room.
Please show the working

Ifound the exercise on the internet. attached is the list mentioned above.in order for a compound to be considered optically active it can't have any axis or plan of symmetry. the molecule  shouldn't also  be superimposable on its mirror image.with such considerations, the compounds that are optically active are: -third compound on the first image is optically active; -second and third compound from the second image are optically actives.