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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If a sixth brand M is tested and found to be more effective than S, then which of the following must be true, if the findings of the study are correct?
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- M is the most effective of all the six brands tested
- Atleast four of the six brands tested are less effective than M
- M is more effective than P
- M is less effective than P
Correct Option: B
According to the question,
P > Q. S > R
T is least effective Q = R, S > Q
∴ S/P > Q = R > T
It is clear from the ranking order so obtained that brand S may be less effective than P, equal to P or more effective than P. It means that position of S is not fixed. Now as per question, sixth band i.e, M is more effective than S which implies that whatever be the position of S, there will be atleast four brands which will be less effective than M.
