Answer-Which box is placed at the bottom?

Only two boxes are placed above box P. Only one box is placed between box S and P. Three boxes are placed between box N and O. N is placed above O. As many as boxes are placed between box S and Q as between box Q and M. Clearly, we cant place S, Q and M fulfilling the given condition in Case 2. However, in Case 1 we get the arrangement as follows Evidently, R will be filling the vacant position in Case 1.

Question

Which box is placed at the bottom?

Study the following information carefully and answer the question given below: Seven boxes M, N, O, P, Q, R, S are arranged one above another. Only two boxes are placed above box P. Only one box is placed between box S and P. As many as boxes are placed between box S and Q as between box Q and
M. Three boxes are placed between box N and O. N is placed above O.

A S

B R

C M

D O