Data Sufficiency

Q: Six persons are sitting in two parallel rows containing three people each, facing each other. Is Laxmi facing Omkar? I. Laxmi 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 Laxmi, Karan, and Payal, but not Omkar. From Statement II: Omkar is at an extreme end next to Payal. Combining I and II: Since Payal is in the middle of the South-facing row, Omkar could be at either the left extreme or the right extreme of that row. Therefore, Omkar might be facing Laxmi or the other person. Both statements together are not sufficient.

Q: What is Bikas's rank from the top in a class of 50 students? I. Faisal is 10th from the top and Esha is 25th from the bottom. II. Bikas is ranked exactly in the middle of Fa...

Correct Answer: Option B (Statement II alone is sufficient.). From Statement I: There is no information provided about Bikas. Not sufficient. From Statement II: Bikas's rank is exactly in the middle of 10 and 26. Rank = (10 + 26) / 2 = 18th from the top. Statement II alone is sufficient.

Q: What is Lalit's rank from the top in a class of 50 students? I. Gita is 11th from the top and Kavya is 24th from the bottom. II. Lalit is ranked exactly in the middle of Git...

Correct Answer: Option B (Statement II alone is sufficient.). From Statement I: There is no information provided about Lalit. Not sufficient. From Statement II: Lalit's rank is exactly in the middle of 11 and 27. Rank = (11 + 27) / 2 = 19th from the top. Statement II alone is sufficient.

Q: On which day of the week did Vani visit the bank? (Assume the week starts on Monday). I. Vani visited the bank after Wednesday but before Saturday, and it was not on Thursday. II...

Correct Answer: Option A (Statement I alone is sufficient.). From Statement I: The days between Wednesday and Saturday are Thursday and Friday. Since the visit was not on Thursday, it must be on Friday. Statement I alone is sufficient. Statement II gives a wide range.

Q: How is Ojas related to Qadir? I. Qadir is the brother of Mona, who is the daughter of Ojas. II. Ojas has only two children.

Correct Answer: Option D (Both statements I and II together are not sufficient.). From Statement I: Qadir and Mona are siblings, and Ojas is their parent. So Qadir is the son of Ojas. However, we do not know Ojas's gender. Ojas could be the father or mother. From Statement II: It only gives the number of children. Combining both still does not reveal Ojas's gender. 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 5 (Q21 to Q25)

Q21

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

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Q22

What is Bikas's rank from the top in a class of 50 students?
I. Faisal is 10th from the top and Esha is 25th from the bottom.
II. Bikas is ranked exactly in the middle of Faisal (who is 10th from top) and Esha (who is 26th from top).

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Q23

What is Lalit's rank from the top in a class of 50 students?
I. Gita is 11th from the top and Kavya is 24th from the bottom.
II. Lalit is ranked exactly in the middle of Gita (who is 11th from top) and Kavya (who is 27th from top).

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Q24

On which day of the week did Vani visit the bank? (Assume the week starts on Monday).
I. Vani visited the bank after Wednesday but before Saturday, and it was not on Thursday.
II. Vani visited the bank before Sunday but after Monday.

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Q25

How is Ojas related to Qadir?
I. Qadir is the brother of Mona, who is the daughter of Ojas.
II. Ojas has only two children.

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Data Sufficiency

Community Discussion & Shortcut Formulas

What is Bikas's rank from the top in a class of 50 students?
I. Faisal is 10th from the top and Esha is 25th from the bottom.
II. Bikas is ranked exactly in the middle of Faisal (who is 10th from top) and Esha (who is 26th from top).

Community Discussion & Shortcut Formulas

What is Lalit's rank from the top in a class of 50 students?
I. Gita is 11th from the top and Kavya is 24th from the bottom.
II. Lalit is ranked exactly in the middle of Gita (who is 11th from top) and Kavya (who is 27th from top).

Community Discussion & Shortcut Formulas

On which day of the week did Vani visit the bank? (Assume the week starts on Monday).
I. Vani visited the bank after Wednesday but before Saturday, and it was not on Thursday.
II. Vani visited the bank before Sunday but after Monday.

Community Discussion & Shortcut Formulas

How is Ojas related to Qadir?
I. Qadir is the brother of Mona, who is the daughter of Ojas.
II. Ojas has only two children.

Community Discussion & Shortcut Formulas

Data Sufficiency

Community Discussion & Shortcut Formulas

What is Bikas's rank from the top in a class of 50 students? I. Faisal is 10th from the top and Esha is 25th from the bottom. II. Bikas is ranked exactly in the middle of Faisal (who is 10th from top) and Esha (who is 26th from top).

Community Discussion & Shortcut Formulas

What is Lalit's rank from the top in a class of 50 students? I. Gita is 11th from the top and Kavya is 24th from the bottom. II. Lalit is ranked exactly in the middle of Gita (who is 11th from top) and Kavya (who is 27th from top).

Community Discussion & Shortcut Formulas

On which day of the week did Vani visit the bank? (Assume the week starts on Monday). I. Vani visited the bank after Wednesday but before Saturday, and it was not on Thursday. II. Vani visited the bank before Sunday but after Monday.

Community Discussion & Shortcut Formulas

How is Ojas related to Qadir? I. Qadir is the brother of Mona, who is the daughter of Ojas. II. Ojas has only two children.

Community Discussion & Shortcut Formulas

What is Bikas's rank from the top in a class of 50 students?
I. Faisal is 10th from the top and Esha is 25th from the bottom.
II. Bikas is ranked exactly in the middle of Faisal (who is 10th from top) and Esha (who is 26th from top).

What is Lalit's rank from the top in a class of 50 students?
I. Gita is 11th from the top and Kavya is 24th from the bottom.
II. Lalit is ranked exactly in the middle of Gita (who is 11th from top) and Kavya (who is 27th from top).

On which day of the week did Vani visit the bank? (Assume the week starts on Monday).
I. Vani visited the bank after Wednesday but before Saturday, and it was not on Thursday.
II. Vani visited the bank before Sunday but after Monday.

How is Ojas related to Qadir?
I. Qadir is the brother of Mona, who is the daughter of Ojas.
II. Ojas has only two children.