If P is 60% of Q, Q is 50% of R, R is 40% of S, S is 45% of T; Find P : T ?

Question

There are five persons in a group – P, Q, R, S and T. The group has one doctor, one lawyer and one artist. P and S are unmarried students. T is a man married to one of the group members. Q is the brother of P and is neither doctor nor artist. R is not doctor.
Who is the doctor, who is the artist, who is the spouse of R and who is the lawyer?

Answer 1

P is 5.4% of T

---

P=0.6 Q
Q= 0.5 R
R= 0.4 S
S= 0.45 T
P=0.6*0.5*0.4*0.45 T= 0.054 T
P:T= 0.054 or 5.4%