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Official SSC CGL Tier 1 Solved Papers

SSC CGL 12 Sep 2025 Solved Question Bank (Shift 1, 2 & 3)

Explore all 300 official questions asked on 12 September 2025 across Shift 1, Shift 2, and Shift 3 with detailed step-by-step solutions, shortcuts, and KaTeX math formulas.

300 Solved Questions
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Shift 1 (Morning) - All 4 Sections

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1
The Eighth Schedule of the Indian Constitution originally contained how many languages?
2
Which layer of the atmosphere contains Ozone Layer?
3
Which river is known as the “Sorrow of Bihar”?
4
The value of ‘g’ (acceleration due to gravity) is minimum at:
5
Assertion (A): In the Demographic Transition Model, India is currently in the late third stage. Reason (R): Birth rates are falling significantly while death rates have already stabilized at a low level.
6
The process of ‘Nitrification’ in the nitrogen cycle involves:
7
Which type of volcanic eruption is characterized by the most explosive activity and high-viscosity lava?
8
Which gland is often referred to as the ‘Master Gland’ of the human body?
9
Which instrument is used to measure atmospheric pressure?
10
Who is the author of the famous book “Hind Swaraj”?
11
The ‘Ramsar Convention’ is related to the conservation of:
12
The Pitt’s India Act of 1784 was significant because it:
13
Mitochondria are known as the powerhouse of the cell because they produce:
14
Who was the first Viceroy of India?
15
Armenia has unveiled a butterfly-based logo for COP17 featuring which endemic species?
16
The ‘Curzon Line’ is the boundary between:
17
Under the Bharatiya Nyaya Sanhita (BNS), the crime of ‘Sedition’ has been replaced by:
18
In Quantum Computing, the basic unit of information that can exist in multiple states simultaneously is called:
19
The Battle of Wandiwash (1760) was fought between:
20
The PM-PRANAM scheme aims to:
21
Which of the following Harappan sites is known for a unique water harnessing system and storm-water drainage?
22
By which year does Indian Railways plan to double originating train capacity in 48 major cities?
23
What is the name of the world’s longest expressway tunnel recently opened by China in the Xinjiang Uygur Autonomous Region?
24
Under the Indus Waters Treaty (1960), India has unrestricted rights over which set of rivers?
25
Which Article of the Indian Constitution was amended by the 106th Amendment Act to provide 1/3rd reservation for women?
1
Simplify: (3 + 2.8) - 1.5
2
The line y = mx + 7 passes through (2, 13). Find m.
3
A car wheel having a radius of 42 cm. What percentage of its circumference is covered in a half turn? (Use pi = 22/7)
4
An annular region has outer radius 12 cm and inner radius 8 cm. What is the approximate ratio of the annular area to the whole outer circle?
5
A retailer marks a laptop 70% above its cost price. He offers a first discount of 20% on the marked price. During a sale, an additional discount of 15% is applied on the already discounted price. If the final selling price is ₹39,312, what is the approximate cost price of the laptop?
6
Three pumps, A, B, and C are capable of filling a reservoir. A fills in 5 hours, B in 7 hours, and C in 10 hours. When all three pumps are opened together, they operate for 1.5 hours before pump C is closed. How much additional time will it take to completely fill the reservoir after that?
7
X is able to complete a task in 12 days, while Y takes 18 days to finish the same task. If they collaborate and work together for 3 days, what fraction of the work will still remain?
8
Two spices priced at ₹80 per kg and ₹160 per kg are blended. They are sold at ₹140 per kg, achieving a profit margin of 25%. What is the ratio of the two spices in the mixture?
9
Two motorcycles, M and N, start from points 480 km apart. They travel at constant speeds. If they move towards each other, they meet in 5 hours. If they move in the same direction, they meet in 15 hours. What is the speed of motorcycle M? (Assume M is the faster motorcycle)
10
A circular garden having a radius of 28 cm. If 80% of it is cultivated, what is the area of garden remaining uncultivated?
11
An express train covers a fixed distance in 40 minutes at an average speed of 200 km/h. Due to construction work, it needs to be diverted, increasing the distance by 25%. If the train needs to arrive at its destination on time (in 40 minutes), what should its new average speed be in km/h?
12
A sum becomes ₹7,200 in 2 years and ₹8,640 in 3 years at compound interest. What is the original principal?
13
Priya purchased 30 litres of honey at ₹50 per litre. She also purchased 20 litres of honey at ₹55 per litre. She combined both quantities and then sold the entire mixture at ₹54 per litre. What was her total profit or loss?
14
A 50-litre mixture contains juice and water in the ratio 3:2. How much water (in litres) must be added to this mixture to change the ratio of juice to water to 3:4?
15
A company produced 1500 units at a total cost of ₹1,20,000. It donated 300 units to an NGO. For the rest, it announced a 15% discount on the market price of ₹110 per unit. It also offered 3 units free for every 10 units purchased. If all 1500 units were distributed, what is the overall gain or loss percentage?
16
An amount is said to triple in 6 years with compound interest. How many years will it take for the amount to grow to 27 times its original value?
17
32³ + 19³ - 38³ + 312 is equal to:
18
Evaluate: 8 1/3 - [7/9 / {2/5 - (1/3 * (5/6 - 1/6))}]
19
Arrange the fractions 7/11, 5/9, 4/7, and 3/5 in ascending order.
20
From a sample of 250 data scientists, determine the ratio of those proficient in Python to those proficient in R.
21
A landlord bought a property for ₹12,00,000. He wants to earn a 10% annual return on his investment after paying ₹2,500 per month for maintenance. What should be the monthly rent he charges?
22
The average of 12 numbers is 75. The average of the first 5 numbers is 68. The average of the next 5 numbers is 20% more than the average of the first 5 numbers. The 11th number is 12 more than the 12th number. What is the average of the 11th and 12th numbers?
23
What is the average of all integers between 150 and 300 that are exactly divisible by 13?
24
Rajesh started a business by investing ₹1,00,000. After 5 months, Suresh joined with ₹1,50,000. At the end of 7 months from the start, Tushar joined with ₹2,00,000. If the total profit is ₹1,50,000 at the end of the year, find the share of Tushar(approximate).
25
P and Q start a business. P invests ₹90,000 for 8 months, Q invests ₹1,50,000 for 5 months. What is Q's share of a ₹50,000 profit(approximate)?
1
Select the sentence containing the homonym of the highlighted word: The choir began the canon at the conductor’s signal.
2
A sentence is provided in indirect speech. From the four given options, choose the one that most accurately conveys the sentence in its corresponding indirect speech. He asked me, “Did you submit your homework?”
3
Choose the most suitable option to replace the highlighted part of the sentence: She has the reputation to be an honest leader.
4
Select the most appropriate antonym of the given word: DUPLICITOUS
5
Select the correct option: Even though the plan looked workable on paper, executing it turned out to be ________ complicated than expected.
6
As per the author, what has contributed to the growing divide between education and wisdom in modern times?
7
What key distinction does the passage primarily highlight?
8
According to the author, which individuals may possess wisdom even without formal education?
9
What is implied by the statement “wisdom enriches the soul”?
10
As per the passage, wisdom is mainly developed through:
11
Select the most appropriate synonym of the given word: DUPLICITOUS
12
Identify the misspelt word
13
Choose the correct meaning of idiom: At sixes and sevens
14
Spot the correct spelling of a CSF-shunt procedure.
15
Select the correct option: Even though the phenomenon is uncommon, it may still occur _________ prolonged drought conditions.
16
Choose the most suitable option to replace the highlighted part of the sentence: The doctor advised him to stop consuming junk food and doing workouts regularly.
17
Choose the correct one-word substitute for: 'A person who speaks two languages fluently’.
18
Find the part of the sentence that contains an error: That the report overlooked several underlying causes (1)/ behind the public unrest were surprising (2)/ given the volume of evidence (3)/ collected over the past few months. (4)
19
A sentence is provided in indirect speech. From the four given options, choose the one that most accurately conveys the sentence in its corresponding direct speech. He said that he would attend the meeting after the meal.
20
Rearrange the following sentences to form a coherent paragraph: 1. It is a process that involves systematic and objective examination of a subject to uncover new facts or verify existing ones. 2. Research serves as a fundamental pillar of academic and scientific advancement. 3. This may be either theoretical, intended to broaden knowledge, or applied, designed to address a practical problem. 4. The results of this investigation are then recorded and peer-reviewed to ensure validity and credibility.
21
Rearrange the following sentences in correct order to make a logical passage: 1. A communication strategy was developed using outreach insights. 2. Demographic data was monitored through campaign dashboards. 3. User engagement was gathered from multiple platforms. 4. Analysts classified users according to age and behaviour.
22
Select the correct option: The company expanded so quickly that its systems could _______ keep up.
23
Convert the sentence provided below from its passive voice structure to an active voice structure: It was being reported by several sources that the mission had been compromised internally.
24
Change the following from active to passive: They have been ignoring preservation of the records for years.
25
Find the part of the sentence that contains an error: What makes the draft legislation especially contentious is not its proposed restructuring of fiscal authority per se, (1)/ but that it assumes, without empirical evidence, (2)/ a fiscal parity among states whose developmental starting points are (3)/ incomparable by any accepted standard. (4)

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