Direction: Read the following information and answer the question that follow.
In a study of five brands of pain relieving tablets P, Q, R, S and T, the brands were tested and ranked against each other as more or less effective per dose. The following results were obtained.
I. P was more effective than Q.
II. The effectiveness of R was less than that of S.
III. T was the least effective brand tested.
IV. Q and R were equally effective.
V. The effectiveness of S was greater than that of Q.
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All the information in the results given above can be derived from which of the following groups of statements?
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- Statements I, II and III
- Statements I, III and IV
- Statements I, II and V
- Statements I, II, III and IV
Correct Option: D
According to the question,
P > Q. S > R
T is least effective Q = R, S > Q
∴ S/P > Q = R > T
Statement V is not required.
