Q1. Find the odd pair: 2:3, 5:25, 6:36, 12:144
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Answer: B. 2:3
In each pair except 2:3, the second number is the square of the first.
SSC CGL General Intelligence & Reasoning Beginner Practice Set 12
25 beginner questions. Tap an option to check it, or open “Show answer” for the explanation.
Topics: Classification, Ranking and Order, Calendar, Clock, Missing Number, Alphabet Test, Analogy, Dictionary Order, Number Series, Number Ranking, Coding-Decoding, Direction Sense
Score: 0 / 0
Q2. In a row of 53 people, Sanjay is 19th from the left and Kavita is 9th from the right. How many people are there between them?
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Answer: B. 25
Between = 53 − (19 + 9) = 25.
Q3. If today is Thursday, what day of the week will it be after 36 days?
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Answer: D. Friday
36 ÷ 7 leaves remainder 1. Thursday + 1 day = Friday.
Q4. A clock shows 12:20. What time will its mirror image show?
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Answer: D. 11:40
11:60 − 12:20 = 11:40.
Q5. Find the missing number, following the same rule in each group: (11, 3, 196); (8, 8, 256); (12, 4, ?)
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Answer: D. 256
Rule: third = (first + second)². 12, 4 → 256.
Q6. Which letter is 6th to the right of the 14th letter from the left in the English alphabet?
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Answer: C. T
The 14th letter is N. 6 places to the right gives T.
Q7. Find the missing number, following the same rule in each group: (11, 3, 33); (5, 6, 30); (12, 12, ?)
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Answer: D. 144
Rule: third = first × second. 12, 12 → 144.
Q8. Find the missing term: 22 : 483 :: 21 : ?
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Answer: C. 440
Rule: n² − 1. 21² − 1 = 440.
Q9. If the following words are arranged in dictionary order, which word comes 2nd? Magic, Magnify, Maggot, Magpie
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Answer: C. Magic
Dictionary order: Maggot, Magic, Magnify, Magpie. The 2nd word is Magic.
Q10. Find the wrong number in the series: 9, 16, 25, 36, 50, 64, 81
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Answer: A. 50
Rule: squares of 3 to 9. The term should be 49, not 50.
Q11. How many numbers from 1 to 950 are divisible by 3 or 5?
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Answer: C. 443
⌊950/3⌋ + ⌊950/5⌋ − ⌊950/15⌋ = 316 + 190 − 63 = 443.
Q12. Find the wrong number in the series: 3, 6, 12, 24, 48, 94, 192
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Answer: B. 94
Rule: multiply by 2. The term should be 96, not 94.
Q13. In a row of 30 people, Ajay is 7th from the left and Deepak is 3rd from the right. How many people are there between them?
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Answer: D. 20
Between = 30 − (7 + 3) = 20.
Q14. Find the odd pair: 3:10, 9:81, 11:121, 12:144
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Answer: A. 3:10
In each pair except 3:10, the second number is the square of the first.
Q15. In a certain code, PLANET is written as OKZMDS. How is COTTON written in that code?
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Answer: B. BNSSNM
Each letter moves 1 place backward. So COTTON → BNSSNM.
Q16. If the letters of the word 'MACHINE' are arranged in alphabetical order, which letter will be 4th from the left?
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Answer: D. H
Alphabetical order: ACEHIMN. The 4th letter is H.
Q17. Find the missing term: 16 : 33 :: 34 : ?
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Answer: B. 69
Rule: 2n + 1. 2 × 34 + 1 = 69.
Q18. If the letters of the word 'LIBRARY' are arranged in alphabetical order, which letter will be 2nd from the left?
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Answer: D. B
Alphabetical order: ABILRRY. The 2nd letter is B.
Q19. How many numbers from 1 to 1000 are divisible by 6 or 5?
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Answer: B. 333
⌊1000/6⌋ + ⌊1000/5⌋ − ⌊1000/30⌋ = 166 + 200 − 33 = 333.
Q20. Find the odd one out: 31, 59, 83, 91
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Answer: B. 91
All except 91 are prime numbers; 91 is composite.
Q21. If the digits of the number 41965 are arranged in ascending order, what is the sum of the 1st and 3rd digits from the left?
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Answer: A. 6
Ascending: 14569. 1 + 5 = 6.
Q22. A clock shows 9:40. What time will its mirror image show?
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Answer: B. 2:20
11:60 − 9:40 = 2:20.
Q23. Arjun walks 12 km towards North, then turns right and walks 16 km. How far is Arjun from the starting point?
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Answer: C. 20 km
Distance = √(12² + 16²) = √400 = 20 km.
Q24. Find the missing term: 19 : 360 :: 12 : ?
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Answer: B. 143
Rule: n² − 1. 12² − 1 = 143.
Q25. If the digits of the number 16429 are arranged in ascending order, what is the sum of the 1st and 4th digits from the left?
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Answer: C. 7
Ascending: 12469. 1 + 6 = 7.