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Negative Casework Chain Beginner-Intermediate Worksheet: Focus on common variations practice Negative Casework Chain BEGINNER INTERMEDIATE

Level up your Negative Casework Chain skills! You're at Worksheet 4 of 10 (33% through this series). This step-up challenge worksheet features 20 beginner-intermediate-level problems with a focus on common variations practice. Topics covered: negative casework chain for competitive exams, how to solve negative casework chain, negative casework chain tricks.

📝 Worksheet 4 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Beginner Intermediate level

What you'll learn in this worksheet:
Your progress through Negative Casework Chain
Worksheet 4 of 10 (33% complete)

Question 1

Ronald says: 'Diane is not my brother.' Amanda says: 'Diane is not my cousin.' Robert says: 'Diane is my sibling.' Only one person is lying. What is the true relationship between Ronald and Diane?
If Robert is telling the truth that Diane is their sibling, and Ronald says Diane is not their brother (but could be sister), then Diane is Ronald's sister.

Question 2

Yogesh is not Catherine's father. Yogesh is not Catherine's uncle. Yogesh has the same parents as Catherine. How is Yogesh related to Catherine?
Since Yogesh is not father or uncle but has same parents, Yogesh must be a sibling of Catherine.

Question 3

Timothy says: 'Bhavna is not my brother.' Mary says: 'Bhavna is not my cousin.' Luca says: 'Bhavna is my sibling.' Only one person is lying. What is the true relationship between Timothy and Bhavna?
If Luca is telling the truth that Bhavna is their sibling, and Timothy says Bhavna is not their brother (but could be sister), then Bhavna is Timothy's sister.

Question 4

Nia is not Umesh's father. Nia is not Umesh's uncle. Nia has the same parents as Umesh. How is Nia related to Umesh?
Since Nia is not father or uncle but has same parents, Nia must be a sibling of Umesh.

Question 5

Deborah says: 'Carol is not my brother.' Amy says: 'Carol is not my cousin.' Ronald says: 'Carol is my sibling.' Only one person is lying. What is the true relationship between Deborah and Carol?
If Ronald is telling the truth that Carol is their sibling, and Deborah says Carol is not their brother (but could be sister), then Carol is Deborah's sister.

Question 6

Ahmed says: 'Jatin is not my brother.' Divya says: 'Jatin is not my cousin.' Carol says: 'Jatin is my sibling.' Only one person is lying. What is the true relationship between Ahmed and Jatin?
If Carol is telling the truth that Jatin is their sibling, and Ahmed says Jatin is not their brother (but could be sister), then Jatin is Ahmed's sister.

Question 7

Robert says: 'Sanjay is not my brother.' Rohit says: 'Sanjay is not my cousin.' William says: 'Sanjay is my sibling.' Only one person is lying. What is the true relationship between Robert and Sanjay?
If William is telling the truth that Sanjay is their sibling, and Robert says Sanjay is not their brother (but could be sister), then Sanjay is Robert's sister.

Question 8

Carmen is not Pradeep's father. Carmen is not Pradeep's uncle. Carmen has the same parents as Pradeep. How is Carmen related to Pradeep?
Since Carmen is not father or uncle but has same parents, Carmen must be a sibling of Pradeep.

Question 9

Brian says: 'Hema is not my brother.' Varsha says: 'Hema is not my cousin.' Charles says: 'Hema is my sibling.' Only one person is lying. What is the true relationship between Brian and Hema?
If Charles is telling the truth that Hema is their sibling, and Brian says Hema is not their brother (but could be sister), then Hema is Brian's sister.

Question 10

Fatima says: 'Kimberly is not my brother.' Giulia says: 'Kimberly is not my cousin.' Thomas says: 'Kimberly is my sibling.' Only one person is lying. What is the true relationship between Fatima and Kimberly?
If Thomas is telling the truth that Kimberly is their sibling, and Fatima says Kimberly is not their brother (but could be sister), then Kimberly is Fatima's sister.

Question 11

William says: 'Girish is not my brother.' Mark says: 'Girish is not my cousin.' Melissa says: 'Girish is my sibling.' Only one person is lying. What is the true relationship between William and Girish?
If Melissa is telling the truth that Girish is their sibling, and William says Girish is not their brother (but could be sister), then Girish is William's sister.

Question 12

Kavya says: 'Diane is not my brother.' Urmila says: 'Diane is not my cousin.' Matthew says: 'Diane is my sibling.' Only one person is lying. What is the true relationship between Kavya and Diane?
If Matthew is telling the truth that Diane is their sibling, and Kavya says Diane is not their brother (but could be sister), then Diane is Kavya's sister.

Question 13

Nitin says: 'Marie is not my brother.' Nisha says: 'Marie is not my cousin.' Isabella says: 'Marie is my sibling.' Only one person is lying. What is the true relationship between Nitin and Marie?
If Isabella is telling the truth that Marie is their sibling, and Nitin says Marie is not their brother (but could be sister), then Marie is Nitin's sister.

Question 14

Jeffrey says: 'Kimberly is not my brother.' Isha says: 'Kimberly is not my cousin.' Nancy says: 'Kimberly is my sibling.' Only one person is lying. What is the true relationship between Jeffrey and Kimberly?
If Nancy is telling the truth that Kimberly is their sibling, and Jeffrey says Kimberly is not their brother (but could be sister), then Kimberly is Jeffrey's sister.

Question 15

Yuki says: 'Gaurav is not my brother.' Kofi says: 'Gaurav is not my cousin.' Daniel says: 'Gaurav is my sibling.' Only one person is lying. What is the true relationship between Yuki and Gaurav?
If Daniel is telling the truth that Gaurav is their sibling, and Yuki says Gaurav is not their brother (but could be sister), then Gaurav is Yuki's sister.

Question 16

Amy says: 'Sita is not my brother.' Mei says: 'Sita is not my cousin.' Ahmed says: 'Sita is my sibling.' Only one person is lying. What is the true relationship between Amy and Sita?
If Ahmed is telling the truth that Sita is their sibling, and Amy says Sita is not their brother (but could be sister), then Sita is Amy's sister.

Question 17

Mukesh is not Edward's father. Mukesh is not Edward's uncle. Mukesh has the same parents as Edward. How is Mukesh related to Edward?
Since Mukesh is not father or uncle but has same parents, Mukesh must be a sibling of Edward.

Question 18

Tarun says: 'Kenneth is not my brother.' William says: 'Kenneth is not my cousin.' Olga says: 'Kenneth is my sibling.' Only one person is lying. What is the true relationship between Tarun and Kenneth?
If Olga is telling the truth that Kenneth is their sibling, and Tarun says Kenneth is not their brother (but could be sister), then Kenneth is Tarun's sister.

Question 19

Christopher says: 'Kenneth is not my brother.' Catherine says: 'Kenneth is not my cousin.' Joseph says: 'Kenneth is my sibling.' Only one person is lying. What is the true relationship between Christopher and Kenneth?
If Joseph is telling the truth that Kenneth is their sibling, and Christopher says Kenneth is not their brother (but could be sister), then Kenneth is Christopher's sister.

Question 20

Richard is not Fatima's father. Richard is not Fatima's uncle. Richard has the same parents as Fatima. How is Richard related to Fatima?
Since Richard is not father or uncle but has same parents, Richard must be a sibling of Fatima.
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