1.  Questions : Who is tallest among six boys P, T, N, D, Q, and R ?
Statements :

I.   P is taller than D and N but not as tall as T.
II.  R is taller than Q but not as tall as T.
III. Q is not taller than T and R.

A. Only I and II
B. Only II and III
C. Only I and III
D. All I, II and III
E. Only I and either II or III

Answer: Option A

Explanation:

From I, we have : P > D, P > N, T > P > i. e. T > P > D > N >

or T > P > N > D .......(i)

From II, we have : R > Q , T > R i. e. T > R > Q .........(ii)

From III, we have : T > Q, R > Q ............ (iii)

Clearly, from (i) and (ii), we conclude that T is taller than each one of P, N, D, R and Q. So, T is the tallest.