Must Be True Classification: Worksheet 6 - Intermediate-Advanced Practice Must Be True Classification INTERMEDIATE ADVANCED

Ready to master Must Be True Classification? This timed practice ⚡ worksheet (6/10) presents 20 intermediate-advanced-level challenges. Focus area: speed building. Learn to solve must be true classification tricks, handle must be true classification shortcut methods, and perfect must be true classification bank exam questions with our step-by-step solutions.

📝 Worksheet 6 of 10 • 20 questions • ⏱️ Estimated time: 20 minutes • 🎯 Intermediate Advanced level

What you'll learn in this worksheet:

Understand the logic behind must be true classification shortcut methods
Learn step-by-step approaches to speed building
Handle multi-step problems systematically
Master complex problem variations and edge cases
Master must be true classification tricks through focused practice

Your progress through Must Be True Classification

Worksheet 6 of 10 (55% complete)

Question 1

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 2

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 3

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: Mary did not pass the exam Based only on the premises, is this statement:

Could be true — She studied less than 10 hours, so she cannot have passed given the premise

Question 4

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 5

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 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: 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 8

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 9

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 10

Could be true — She meets the study requirement, but passing isn't guaranteed

Question 11

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 12

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 13

Must be true — This is exactly what the premise states (contrapositive)

Question 14

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 15

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: John passed the exam Based only on the premises, is this statement:

Could be true — Studying 15 hours meets the requirement, but the premise doesn't say studying guarantees passing

Question 16

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: Mary definitely failed Based only on the premises, is this statement:

Must be true — Premise says ALL who passed studied ≥10 hours. Mary studied 5 hours, so she cannot have passed

Question 17

Must be true — Premise says ALL who passed studied ≥10 hours. Mary studied 5 hours, so she cannot have passed

Question 18

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 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: 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

🏆 Halfway champion! 55% through Must Be True Classification. Keep the momentum!

Previous Worksheet Next Worksheet