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Data Sufficiency: Worksheet 10 - Expert Practice Data Sufficiency EXPERT

Ready to master Data Sufficiency? This accuracy focus 👑 worksheet (10/10) presents 20 expert-level challenges. Focus area: application-based learning. Learn to solve data sufficiency reasoning tricks, handle fast data sufficiency solving, and perfect data sufficiency mastery with our step-by-step solutions.

📝 Worksheet 10 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Expert level

What you'll learn in this worksheet:
Your progress through Data Sufficiency
Worksheet 10 of 10 (100% complete)

Question 1

Is Wei a sibling of Priya? (1) Wei is child of Rohit. (2) Priya is child of Rohit.
Together they confirm Wei and Priya share parent Rohit, making them siblings. Neither statement alone is sufficient because each only gives info about one person.

Question 2

Is Noah the brother of Yuki? (1) Noah is male and child of Priya. (2) Yuki is child of Priya.
Statement 1 tells us Noah is male and child of Priya. Statement 2 tells us Yuki is child of Priya. Together they confirm Noah and Yuki share parent Priya and Noah is male, so Noah is the brother of Yuki.

Question 3

Is Jennifer a sibling of Nisha? (1) Jennifer is child of Nitin. (2) Nisha is child of Nitin.
Together they confirm Jennifer and Nisha share parent Nitin, making them siblings. Neither statement alone is sufficient because each only gives info about one person.

Question 4

Is Rohit the brother of Deepa? (1) Rohit is male and child of Fatima. (2) Deepa is child of Fatima.
Statement 1 tells us Rohit is male and child of Fatima. Statement 2 tells us Deepa is child of Fatima. Together they confirm Rohit and Deepa share parent Fatima and Rohit is male, so Rohit is the brother of Deepa.

Question 5

Is Grace a sibling of Mary? (1) Grace is child of Noah. (2) Mary is child of Noah.
Together they confirm Grace and Mary share parent Noah, making them siblings. Neither statement alone is sufficient because each only gives info about one person.

Question 6

Is Kwame the brother of Aarav? (1) Kwame is male and child of Meera. (2) Aarav is child of Meera.
Statement 1 tells us Kwame is male and child of Meera. Statement 2 tells us Aarav is child of Meera. Together they confirm Kwame and Aarav share parent Meera and Kwame is male, so Kwame is the brother of Aarav.

Question 7

Is Marie the sister of Mary? (1) Marie is female and child of Mason. (2) Mary is child of Mason.
Statement 1 tells us Marie is female and child of Mason. Statement 2 tells us Mary is child of Mason. Together they confirm Marie and Mary share parent Mason and Marie is female, so Marie is the sister of Mary.

Question 8

Is Ama the sister of Mateo? (1) Ama is female and child of Amelia. (2) Mateo is child of Amelia.
Statement 1 tells us Ama is female and child of Amelia. Statement 2 tells us Mateo is child of Amelia. Together they confirm Ama and Mateo share parent Amelia and Ama is female, so Ama is the sister of Mateo.

Question 9

Is Mei the sister of Logan? (1) Mei is female and child of Amelia. (2) Logan is child of Amelia.
Statement 1 tells us Mei is female and child of Amelia. Statement 2 tells us Logan is child of Amelia. Together they confirm Mei and Logan share parent Amelia and Mei is female, so Mei is the sister of Logan.

Question 10

Is Hiroshi a sibling of Asha? (1) Hiroshi is child of Kwame. (2) Asha is child of Kwame.
Together they confirm Hiroshi and Asha share parent Kwame, making them siblings. Neither statement alone is sufficient because each only gives info about one person.

Question 11

Is Linda the sister of Hiroshi? (1) Linda is female and child of Wei. (2) Hiroshi is child of Wei.
Statement 1 tells us Linda is female and child of Wei. Statement 2 tells us Hiroshi is child of Wei. Together they confirm Linda and Hiroshi share parent Wei and Linda is female, so Linda is the sister of Hiroshi.

Question 12

Is Marie the sister of Manish? (1) Marie is female and child of Chloe. (2) Manish is child of Chloe.
Statement 1 tells us Marie is female and child of Chloe. Statement 2 tells us Manish is child of Chloe. Together they confirm Marie and Manish share parent Chloe and Marie is female, so Marie is the sister of Manish.

Question 13

Is Asha the sister of Nitin? (1) Asha is female and child of Karan. (2) Nitin is child of Karan.
Statement 1 tells us Asha is female and child of Karan. Statement 2 tells us Nitin is child of Karan. Together they confirm Asha and Nitin share parent Karan and Asha is female, so Asha is the sister of Nitin.

Question 14

Is John the brother of Mary? (1) John is male and child of Ama. (2) Mary is child of Ama.
Statement 1 tells us John is male and child of Ama. Statement 2 tells us Mary is child of Ama. Together they confirm John and Mary share parent Ama and John is male, so John is the brother of Mary.

Question 15

Is Evelyn a sibling of Mason? (1) Evelyn is child of Arjun. (2) Mason is child of Arjun.
Together they confirm Evelyn and Mason share parent Arjun, making them siblings. Neither statement alone is sufficient because each only gives info about one person.

Question 16

Is Amelia a sibling of Yuki? (1) Amelia is child of Mary. (2) Yuki is child of Mary.
Together they confirm Amelia and Yuki share parent Mary, making them siblings. Neither statement alone is sufficient because each only gives info about one person.

Question 17

Is Mason the brother of Asha? (1) Mason is male and child of Arjun. (2) Asha is child of Arjun.
Statement 1 tells us Mason is male and child of Arjun. Statement 2 tells us Asha is child of Arjun. Together they confirm Mason and Asha share parent Arjun and Mason is male, so Mason is the brother of Asha.

Question 18

Is Linda a sibling of Mateo? (1) Linda is child of Nitin. (2) Mateo is child of Nitin.
Together they confirm Linda and Mateo share parent Nitin, making them siblings. Neither statement alone is sufficient because each only gives info about one person.

Question 19

Is Wei the brother of Kavya? (1) Wei is male and child of Nitin. (2) Kavya is child of Nitin.
Statement 1 tells us Wei is male and child of Nitin. Statement 2 tells us Kavya is child of Nitin. Together they confirm Wei and Kavya share parent Nitin and Wei is male, so Wei is the brother of Kavya.

Question 20

Is Chen the brother of Isabella? (1) Chen is male and child of Harper. (2) Isabella is child of Harper.
Statement 1 tells us Chen is male and child of Harper. Statement 2 tells us Isabella is child of Harper. Together they confirm Chen and Isabella share parent Harper and Chen is male, so Chen is the brother of Isabella.
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