Among four friends A, B, C and D. who is the heaviest ?
I. B is heavier than A, but lighter than D.
II. C is lighter than B.

If the data in statement I alone are sufficient to answer the question

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If the data in statement II alone are sufficient answer the question

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If the data either in I or II alone are sufficient to answer the question;

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If the data in both the statements together are needed.

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Solution

The correct option is B If the data in both the statements together are needed.
From I. we have A < B < D.
From II. we have C < B
Combining( I) and (II), we can conclude that D is the heaviest.
So, both the statements are needed.
option D

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Among four friends A, B, C and D. who is the heaviest ? I. B is heavier than A, but lighter than D. II. C is lighter than B.

The correct option is B If the data in both the statements together are needed.From I. we have A < B < D.From II. we have C < BCombining( I) and (II), we can conclude that D is the heaviest.So, both the statements are needed. option D

Among four friends A, B, C and D. who is the heaviest ?
I. B is heavier than A, but lighter than D.
II. C is lighter than B.

The correct option is B If the data in both the statements together are needed.
From I. we have A < B < D.
From II. we have C < B
Combining( I) and (II), we can conclude that D is the heaviest.
So, both the statements are needed.
option D