CMAT Logical Reasoning 4 — Questions and Answers
Question 1: If P means ÷, Q means ×, R means +, and S means −, what is 18 P 3 Q 4 R 5 S 2?
- 27 (Correct answer)
- 29
- 25
- 31
Correct answer: 27
Substituting: 18 ÷ 3 × 4 + 5 − 2 = 6 × 4 + 5 − 2 = 24 + 5 − 2 = 27.
Question 2: Find the missing number: 5, 11, 23, 47, ?
- 95 (Correct answer)
- 93
- 97
- 89
Correct answer: 95
Each term is 2× previous term + 1: 5×2+1=11, 11×2+1=23, 23×2+1=47, 47×2+1=95.
Question 3: In a group, some people speak French, and all French speakers speak English. Can we conclude that all English speakers speak French?
- Yes, because they share English
- No, English speakers may not speak French (Correct answer)
- Yes, by logical equivalence
- Cannot be determined from the data
Correct answer: No, English speakers may not speak French
The statement 'all French speakers speak English' does not imply the reverse; there may be English speakers who don't know French.
Question 4: Water : Thirst :: Food : ?
- Hunger (Correct answer)
- Taste
- Nutrition
- Cooking
Correct answer: Hunger
Water satisfies thirst just as food satisfies hunger — the relationship is need-to-fulfillment.
Question 5: A man walks 5 km north, turns right and walks 3 km, turns right and walks 5 km. How far is he from the starting point and in which direction?
- 3 km East (Correct answer)
- 3 km West
- 5 km North
- 8 km South
Correct answer: 3 km East
He ends up 3 km east of the starting point after the north-east-south path cancels the vertical displacement.
Question 6: Statement: 'Either it will rain or the match will be played.' It did not rain. What follows?
- The match was played (Correct answer)
- The match was not played
- Both rain and match happened
- Nothing can be concluded
Correct answer: The match was played
In an 'either/or' (inclusive disjunction) when one option is false, the other must be true.
Question 7: Which of the following best completes the analogy? Doctor : Stethoscope :: Carpenter : ?
- Hammer (Correct answer)
- Blueprint
- Wood
- Nails
Correct answer: Hammer
A stethoscope is the primary tool of a doctor; a hammer is the primary tool of a carpenter.
CMAT Logical Reasoning 4
If P means ÷, Q means ×, R means +, and S means −, what is 18 P 3 Q 4 R 5 S 2?