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The following question consists of three statements numbered I, II and III. Decide if data given in the statements are sufficient to answer the question below. Who among K, J, L, M, N and O is the third heaviest? I. J is heavier than M but lighter than K. II. M is immediately heavier than L, which is also immediately heavier than N. III. O is the heaviest.

The following question consists of three statements numbered I, II and III. Decide if data given in the statements are sufficient to answer the question below. Who among K, J, L, M, N and O is the third heaviest? I. J is heavier than M but lighter than K. II. M is immediately heavier than L, which is also immediately heavier than N. III. O is the heaviest. Correct Answer All are required

From statement I:

K > J > M

From statement II:

M > L > N

From statement III:

O > _ > _ > _ > _ > _

On combining statement I and II:

 _ > K > J > M > L > N or

K > J > M > L > N > _

On combining statement II and III:

O > M > L > N > _ > _ or

O > _ > M > L > N > _ or

O > _ > _ > M > L > N

On combining statement III and I:

O > K > J > M > _ > _ or

O > _ > K > J > M > _ or

O > _ > _ > K > J > M or

O > K > _ > J > M > _ or

O > K > _ > _ > J > M or

O > _ > K > _ > J > M or

O > K > J > _ > M > _ or

O > K > J > _ > _ > M

On combining statement I, II and III,

O > K > J > M > L > N 

Hence, J is third heaviest.

Thus, all statements are required.

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