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Must Be True Classification: Worksheet 10 - Expert Practice Must Be True Classification EXPERT

Ready to master Must Be True Classification? This accuracy focus 👑 worksheet (10/10) presents 20 expert-level challenges. Focus area: application-based learning. Learn to solve must be true classification reasoning tricks, handle fast must be true classification solving, and perfect must be true classification 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 Must Be True Classification
Worksheet 10 of 10 (100% complete)

Question 1

Premises: If it's raining, the ground is wet. The ground is not wet. Statement: Someone watered the lawn Based only on the premises, is this statement:
Could be true — Ground could be wet from other causes, but it's not wet, so unlikely

Question 2

Premises: If it's raining, the ground is wet. The ground is not wet. Statement: It is not raining Based only on the premises, is this statement:
Must be true — If it were raining, ground would be wet (modus tollens)

Question 3

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: No doctors are lazy Based only on the premises, is this statement:
Could be true — We only know some doctors aren't lazy; others might be

Question 4

Premises: All students who passed the exam studied at least 10 hours. John studied 15 hours. Mary studied 5 hours. Sarah studied 10 hours exactly. Statement: No one who studied less than 10 hours passed Based only on the premises, is this statement:
Must be true — This is exactly what the premise states (contrapositive)

Question 5

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: No doctors are lazy Based only on the premises, is this statement:
Could be true — We only know some doctors aren't lazy; others might be

Question 6

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: Some doctors are not lazy Based only on the premises, is this statement:
Must be true — Some doctors are researchers, and no researchers are lazy

Question 7

Premises: All students who passed the exam studied at least 10 hours. John studied 15 hours. Mary studied 5 hours. Sarah studied 10 hours exactly. Statement: No one who studied less than 10 hours passed Based only on the premises, is this statement:
Must be true — This is exactly what the premise states (contrapositive)

Question 8

Premises: All students who passed the exam studied at least 10 hours. John studied 15 hours. Mary studied 5 hours. Sarah studied 10 hours exactly. Statement: No one who studied less than 10 hours passed Based only on the premises, is this statement:
Must be true — This is exactly what the premise states (contrapositive)

Question 9

Premises: All students who passed the exam studied at least 10 hours. John studied 15 hours. Mary studied 5 hours. Sarah studied 10 hours exactly. Statement: No one who studied less than 10 hours passed Based only on the premises, is this statement:
Must be true — This is exactly what the premise states (contrapositive)

Question 10

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: No doctors are lazy Based only on the premises, is this statement:
Could be true — We only know some doctors aren't lazy; others might be

Question 11

Premises: All students who passed the exam studied at least 10 hours. John studied 15 hours. Mary studied 5 hours. Sarah studied 10 hours exactly. Statement: Sarah passed the exam Based only on the premises, is this statement:
Could be true — She meets the study requirement, but passing isn't guaranteed

Question 12

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: No doctors are lazy Based only on the premises, is this statement:
Could be true — We only know some doctors aren't lazy; others might be

Question 13

Premises: If it's raining, the ground is wet. The ground is not wet. Statement: Someone watered the lawn Based only on the premises, is this statement:
Could be true — Ground could be wet from other causes, but it's not wet, so unlikely

Question 14

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: No doctors are lazy Based only on the premises, is this statement:
Could be true — We only know some doctors aren't lazy; others might be

Question 15

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: No doctors are lazy Based only on the premises, is this statement:
Could be true — We only know some doctors aren't lazy; others might be

Question 16

Premises: If it's raining, the ground is wet. The ground is not wet. Statement: It could be raining but the ground dried quickly Based only on the premises, is this statement:
Must be false — Premise says 'if raining → ground wet' with no time delay specified

Question 17

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: Some unhappy people are not doctors Based only on the premises, is this statement:
Must be true — Lazy people are unhappy, but they aren't researchers; they could be doctors or not

Question 18

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: Some unhappy people are not doctors Based only on the premises, is this statement:
Must be true — Lazy people are unhappy, but they aren't researchers; they could be doctors or not

Question 19

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: Some unhappy people are not doctors Based only on the premises, is this statement:
Must be true — Lazy people are unhappy, but they aren't researchers; they could be doctors or not

Question 20

Premises: Some doctors are researchers. No researchers are lazy. All lazy people are unhappy. Statement: Some unhappy people are not doctors Based only on the premises, is this statement:
Must be true — Lazy people are unhappy, but they aren't researchers; they could be doctors or not
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