NAB Logical Reasoning 2 — Questions and Answers
Question 1: If all bank managers are accountants and some accountants are auditors, which conclusion must be true?
- All bank managers are auditors
- Some bank managers may be auditors (Correct answer)
- All auditors are bank managers
- No bank managers are auditors
Correct answer: Some bank managers may be auditors
The premise only guarantees that some accountants are auditors, so bank managers who are accountants may or may not be auditors.
Question 2: What is the next number in the sequence: 3, 7, 15, 31, 63, ___?
- 127 (Correct answer)
- 125
- 120
- 130
Correct answer: 127
Each term is obtained by multiplying the previous term by 2 and adding 1 (63 × 2 + 1 = 127).
Question 3: If an interest rate doubles every 5 years and is currently 4%, what will it be in 10 years?
- 8%
- 12%
- 16% (Correct answer)
- 20%
Correct answer: 16%
After 5 years the rate doubles to 8%, and after another 5 years it doubles again to 16%.
Question 4: Pen is to Write as Calculator is to ___.
- Numbers
- Compute (Correct answer)
- Battery
- Display
Correct answer: Compute
A pen's function is to write; a calculator's function is to compute.
Question 5: All honest employees are trusted. John is not trusted. Which conclusion must follow?
- John is dishonest (Correct answer)
- John may be honest
- John is trusted
- John is an employee
Correct answer: John is dishonest
By the contrapositive, if John is not trusted, he cannot be an honest employee, so John is dishonest.
Question 6: Which shape completes the pattern: Circle, Square, Triangle, Circle, Square, ___?
- Circle
- Triangle (Correct answer)
- Square
- Rectangle
Correct answer: Triangle
The pattern repeats in a cycle of three—Circle, Square, Triangle—so the sixth position is Triangle.
Question 7: If A > B and B > C, which statement is definitely true?
- C > A
- A = C
- A > C (Correct answer)
- B = A
Correct answer: A > C
By transitivity of inequality, A > B and B > C together guarantee A > C.
NAB Logical Reasoning 2
If all bank managers are accountants and some accountants are auditors, which conclusion must be true?