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Reasoning

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Data Sufficiency

Question
21 out of 25
 

What is Suman’s rank from the top in a class of forty students?

I. Suman is 3 ranks below Deepak from the top.

II. Deepak’s rank from the bottom is 23.

III. Suman is 3 ranks above Deepak from the bottom.



A Any two of the three
B Only I and II
C Only II and III

D All I, II and III
E Only II and either I or III

Ans. E

From II, we conclude that in a class of 40, Deepak ranks 23rd from the bottom i.e. 18th from the top. From I and II, we find that Suman is 3 ranks below 18th rank from the top i.e. she ranks 21st from the top. From II and III, we find that Suman is 3 ranks above 23rd rank from the bottom i.e. she ranks 20th from the bottom or 21st from the top.

Data Sufficiency Flashcard List

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