Question
Eight persons J, K, L, M, N, O, P and Q have different
weights. Which among the following data is redundant for the following question? How many persons are heavier than J? Statement I: J is heavier than O and L. K is one of the two persons, who are lighter than L. M is lighter than P and N. M is not lighter than J. More than two persons are lighter than O. Q is not the second lightest person. P is not the second heaviest person. Statement II: M is heavier than O. L is lighter than J. N is not lighter than K. Q is not heavier than J. L is not the third heaviest person. K is not the fourth lightest person. Statement III: Neither O nor J is lighter than K. Q is lighter than L and M. N is not lighter than O, who is heavier than at least two persons.Solution
From statement I alone, as J is heavier than O and L. K is one of the two persons, who are lighter than L. M is lighter than P and N. M is not lighter than J. More than two persons are lighter than O. Q is not the second lightest person. P is not the second heaviest person, so P > N > M > J > O > L > K > Q Clearly, four persons are heavier than O. From statement II alone, no proper arrangement is possible. From statement III alone, no proper arrangement is possible. Â Both statement II and statement III are redundant.
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