A teacher categorizes five students, P, Q, R, S and T.

A teacher categorizes five students, P, Q, R, S and T.
She comes up with the following conclusions:

All Ps are Qs.
All Qs Are Rs.
Some Ss are Ps.
All Ss are Qs.
No Ts are Rs.

Which one of the following is/are true?

Answers:

  • All Rs are Ps.
  • Some Ts are Qs.
  • All Ps are Ss.
  • No Qs are Ts.
  • Some Ts are Ps.