Data Sufficiency

Q: Six persons are sitting in two parallel rows containing three people each, facing each other. Is Deepa facing Bikas? I. Deepa sits at one of the extreme ends of the North-facing r...

Correct Answer: Option D (Both statements I and II together are not sufficient.). From Statement I: We know the positions of Deepa, Esha, and Aman, but not Bikas. From Statement II: Bikas is at an extreme end next to Aman. Combining I and II: Since Aman is in the middle of the South-facing row, Bikas could be at either the left extreme or the right extreme of that row. Therefore, Bikas might be facing Deepa or the other person. Both statements together are not sufficient.

Q: In a certain code language, what is the code for 'pure'? (Assume the codes are randomly assigned to words) I. 'pure blue good' is coded as 'so ro ko&#039...

Correct Answer: Option A (Statement I alone is sufficient.). From Statement I: Comparing both sentences, 'blue good' corresponds to 'ro ko'. The unique word left in the first sentence is 'pure', and its unique code is 'so'. Sufficient. From Statement II: There is no information regarding 'pure'. Not sufficient. Statement I alone is sufficient.

Q: How is Xavier related to Yash? I. Yash is the brother of Uma, who is the daughter of Xavier. II. Xavier has only two children.

Correct Answer: Option D (Both statements I and II together are not sufficient.). From Statement I: Yash and Uma are siblings, and Xavier is their parent. So Yash is the son of Xavier. However, we do not know Xavier's gender. Xavier could be the father or mother. From Statement II: It only gives the number of children. Combining both still does not reveal Xavier's gender. Both statements together are not sufficient.

Q: Five persons Xavier, Yash, Zara, Uma, and Vani are sitting in a straight row facing North. Who sits exactly in the middle of the row? I. Xavier sits second to the left of Yash. Za...

Correct Answer: Option C (Both statements I and II together are necessary.). From Statement I: The arrangement block is Xavier _ Yash Zara. From Statement II: Uma is at the extreme left. Vani is next to Xavier. Combining I and II: The only possible full arrangement to fit the block is Uma Vani Xavier Yash Zara. Xavier sits exactly in the middle. Both statements are necessary.

Q: On which exact date of the month was Isha born? I. Isha's mother correctly remembers that Isha was born after the 18th but before the 23th of the month. II. Isha's fath...

Correct Answer: Option D (Both statements I and II together are not sufficient.). From Statement I: Possible dates are between 18 and 23. From Statement II: Possible dates are between 20 and 25. Combining both gives multiple common overlapping dates (e.g., 21, 22). Hence, a unique date cannot be determined. Both statements together are not sufficient.

80 Questions

Practice Data Sufficiency questions with answers and step-by-step solutions. These problems are curated from recent campus placement test papers (TCS, Infosys, Wipro, Cognizant, Accenture) and competitive government exams (SSC CGL, Bank PO, RRB NTPC, UPSC).

Quick Mode: Practice Questions Timed Mock Test

Data Sufficiency: Directions & Problem Statements Shared for questions below

Directions

Set 12 (Q56 to Q60)

Q56

Six persons are sitting in two parallel rows containing three people each, facing each other. Is Deepa facing Bikas?
I. Deepa sits at one of the extreme ends of the North-facing row. Esha sits to the immediate right of Deepa and faces Aman.
II. Bikas sits at an extreme end of the South-facing row and is an immediate neighbor of Aman.

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Q57

In a certain code language, what is the code for 'pure'?
(Assume the codes are randomly assigned to words)
I. 'pure blue good' is coded as 'so ro ko' and 'blue good water' is coded as 'ro ko mo'.
II. 'water life deep' is coded as 'mo no to' and 'life deep blue' is coded as 'no to ro'.

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Q58

How is Xavier related to Yash?
I. Yash is the brother of Uma, who is the daughter of Xavier.
II. Xavier has only two children.

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Q59

Five persons Xavier, Yash, Zara, Uma, and Vani are sitting in a straight row facing North. Who sits exactly in the middle of the row?
I. Xavier sits second to the left of Yash. Zara sits to the immediate right of Yash.
II. Uma sits at the extreme left end of the row and Vani is an immediate neighbor of Xavier.

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Q60

On which exact date of the month was Isha born?
I. Isha's mother correctly remembers that Isha was born after the 18th but before the 23th of the month.
II. Isha's father correctly remembers that Isha was born after the 20th but before the 25th of the month.

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Data Sufficiency

Community Discussion & Shortcut Formulas

In a certain code language, what is the code for 'pure'?
(Assume the codes are randomly assigned to words)
I. 'pure blue good' is coded as 'so ro ko' and 'blue good water' is coded as 'ro ko mo'.
II. 'water life deep' is coded as 'mo no to' and 'life deep blue' is coded as 'no to ro'.

Community Discussion & Shortcut Formulas

How is Xavier related to Yash?
I. Yash is the brother of Uma, who is the daughter of Xavier.
II. Xavier has only two children.

Community Discussion & Shortcut Formulas

Community Discussion & Shortcut Formulas

On which exact date of the month was Isha born?
I. Isha's mother correctly remembers that Isha was born after the 18th but before the 23th of the month.
II. Isha's father correctly remembers that Isha was born after the 20th but before the 25th of the month.

Community Discussion & Shortcut Formulas

Data Sufficiency

Community Discussion & Shortcut Formulas

In a certain code language, what is the code for 'pure'? (Assume the codes are randomly assigned to words) I. 'pure blue good' is coded as 'so ro ko' and 'blue good water' is coded as 'ro ko mo'. II. 'water life deep' is coded as 'mo no to' and 'life deep blue' is coded as 'no to ro'.

Community Discussion & Shortcut Formulas

How is Xavier related to Yash? I. Yash is the brother of Uma, who is the daughter of Xavier. II. Xavier has only two children.

Community Discussion & Shortcut Formulas

Community Discussion & Shortcut Formulas

On which exact date of the month was Isha born? I. Isha's mother correctly remembers that Isha was born after the 18th but before the 23th of the month. II. Isha's father correctly remembers that Isha was born after the 20th but before the 25th of the month.

Community Discussion & Shortcut Formulas

In a certain code language, what is the code for 'pure'?
(Assume the codes are randomly assigned to words)
I. 'pure blue good' is coded as 'so ro ko' and 'blue good water' is coded as 'ro ko mo'.
II. 'water life deep' is coded as 'mo no to' and 'life deep blue' is coded as 'no to ro'.

How is Xavier related to Yash?
I. Yash is the brother of Uma, who is the daughter of Xavier.
II. Xavier has only two children.

On which exact date of the month was Isha born?
I. Isha's mother correctly remembers that Isha was born after the 18th but before the 23th of the month.
II. Isha's father correctly remembers that Isha was born after the 20th but before the 25th of the month.