P, Q, R’ and S are four men. P is the oldest but not the poorest. R is the richest but not the oldest. Q is older than S but not than P or R. P is richer than Q but not than S. The four men can be ordered (descending) in respect of age and richness, respectively, as

Explanation

In the question, we are asked to order the men P, Q, R, and S in descending order of their ages and wealth. The conditions given are that P is the oldest but not the poorest, R is the richest but not the oldest, Q is older than S but not P or R, and P is richer than Q but not S. From these conditions, we can deduce the following: 1. P is the oldest among all, so P will be first in terms of age. 2. R is the richest, so R will be first in terms of wealth. 3. As Q is older than S, but not P or R, he is younger than P, and older than S. The age order so far becomes P > Q > S. 4. R is not the oldest, so R comes somewhere after P. As it`s not specified if R is older or younger than Q, we take the former since it brings us to a valid conclusion. The final age order is P > R > Q > S. 5. P is richer than Q but not S. Thus, S comes after R in terms of wealth. The remaining two positions are of P and Q, since P is richer, he comes before.