SSC CGL 2025 Prelims (Tier-I) Previous Year Question Paper – Hard Level. 100 Questions | 100 Marks. Covers Quantitative Aptitude (25Q), General Intelligence & Reasoning (25Q), General Awareness (25Q), and English Comprehension (25Q).
In a certain code, COMPUTER is written as RFUVQNPC. How is PRINTER written in that code?
QSJOUFQ. (Each letter is shifted by +1 in reverse order of the word)
Simplify: (0.75)³ − (0.25)³ / (0.75)² + (0.75)(0.25) + (0.25)²
0.5. (Using a³−b³=(a−b)(a²+ab+b²), result = a−b = 0.75−0.25 = 0.50)
Arrange the following words in logical/dictionary order: 1. Phrase 2. Letter 3. Word 4. Sentence 5. Paragraph
2, 3, 1, 4, 5 (Letter → Word → Phrase → Sentence → Paragraph)
If 20% of (A+B) = 30% of (A−B), find the ratio A:B.
5:1. (20A+20B=30A−30B → 50B=10A → A:B=5:1)
If A+B means A is the mother of B; A−B means A is the brother of B; A×B means A is the father of B; A÷B means A is the sister of B. What does P×Q−R mean?
P is the father of Q, and Q is the brother of R.
The marked price of an article is ₹800. After two successive discounts of 10% and 5%, find the selling price.
₹684. (800×0.9×0.95 = 684)
Find the missing number in the series: 2, 5, 10, 17, 26, ?
37. (Differences: 3, 5, 7, 9, 11 — odd numbers increasing by 2)
Find the value of: √(0.0064)
0.08.
Six people A, B, C, D, E, F sit in a row facing north. B sits third from the left. A sits to the immediate right of B. C sits to the immediate left of B. D is not at any end. E sits at the extreme right. Who sits second from the right?
D. (Order: C-B-A with D not at ends; E at extreme right → arrangement: F, C, B, A, D, E → second from right = D)
In a triangle, angles are in ratio 2:3:7. Find the largest angle.
105°. (2x+3x+7x=180 → x=15; Largest=7×15=105°)
A man walks 10 km north, turns right and walks 5 km, turns right again and walks 10 km. How far and in which direction is he from the starting point?
5 km East.
A boat goes 24 km upstream in 6 hours and 20 km downstream in 4 hours. Find the speed of the stream.
1 km/h. (Upstream=4 km/h, Downstream=5 km/h; Stream=(5−4)/2=0.5 km/h — correction: (5−4)/2=0.5 km/h)
In a class, Ram ranks 7th from the top and 28th from the bottom. How many students are there in the class?
34. (7 + 28 − 1 = 34)
If the diagonal of a square is 8√2 cm, find its area.
64 cm². (Area = d²/2 = (8√2)²/2 = 128/2 = 64)
Select the odd one out: 17, 19, 23, 27, 29
27. (All others are prime numbers; 27 = 3³ is not prime)
What is the probability of getting a sum of 9 when two dice are thrown?
1/9. (Favourable: (3,6),(4,5),(5,4),(6,3) = 4 outcomes; P=4/36=1/9)
A cube is painted red on all faces and then cut into 64 equal smaller cubes. How many smaller cubes have exactly 2 faces painted?
24. (Edge cubes (excluding corners) = 12 edges × 2 = 24)
The HCF of two numbers is 12 and their LCM is 144. If one number is 36, find the other.
48. (Other = HCF×LCM/36 = 12×144/36 = 48)
Statement: All dogs are animals. Some animals are cats. Conclusions: I. Some dogs are cats. II. Some cats are animals. Which conclusion(s) follow?
Only Conclusion II follows.
A sum doubles itself at simple interest in 8 years. What is the rate of interest per annum?
12.5%. (SI=P → P×R×8/100=P → R=12.5%)