Overview
SSC CHSL (Staff Selection Commission – Combined Higher Secondary Level) is a national-level exam conducted by SSC for recruitment to various Group C and D posts in government departments and ministries.
The recruitment of candidates in SSC CHSL takes place through a robust system of testing in the areas of quantitative aptitude, general intelligence, general awareness, and general English. Every year more than 20 lakh candidates appear for the SSC CHSL exam and out of those around 4-5% of the candidates make the final selection for the job posts after completing the rigorous assessment by SSC.
Purpose
To recruit for:
- Lower Division Clerk (LDC)
- Junior Secretariat Assistant (JSA)
- Postal Assistant (PA)/Sorting Assistant (SA)
- Data Entry Operator (DEO)
Important Dates (Tentative for 2025 Cycle)
Event | Date (Tentative) |
Official Notification Release | May 2025 |
Application Form Start Date | May–June 2025 |
Last Date to Apply | June 2025 |
Tier I Exam Dates | August–September 2025 |
Tier I Result Announcement | October 2025 |
Tier II Exam Date | November–December 2025 |
Eligibility Criteria
📌 Educational Qualification
- Passed 12th Standard or equivalent from a recognized Board or University.
📌 Age Limit (as of 1st Jan 2025)
- Minimum: 18 years
- Maximum: 27 years
Age Relaxation:
- SC/ST – 5 years
- OBC – 3 years
- PwD – 10 years
- Ex-Servicemen, Central Govt. Employees – Varies
🧪 Exam Pattern – Tier I (Computer-Based Test)
Subject | No. of Questions | Maximum Marks | Duration |
General Intelligence | 25 | 50 | |
General Awareness | 25 | 50 | |
Quantitative Aptitude | 25 | 50 | 60 mins (80 mins for PwD) |
English Language | 25 | 50 | |
Total | 100 | 200 |
✅ Key Features
- Negative Marking: 0.50 marks for each wrong answer
- Mode: Online (Computer-Based)
Syllabus Details – Tier I
🧠 General Intelligence
- Analogy, Coding-Decoding, Series, Classification
- Blood Relations, Venn Diagrams
- Direction & Distance, Alphabet & Word Test
- Non-verbal Reasoning (Mirror Image, Paper Folding)
📖 English Language
- Reading Comprehension
- Synonyms & Antonyms
- Fill in the Blanks, Spelling Correction
- Sentence Rearrangement
- Cloze Test, Grammar (Tenses, Voice, Narration)
📐 Quantitative Aptitude
- Number System, Simplification
- Ratio, Proportion, Percentages
- Profit & Loss, Discount, SI & CI
- Time & Work, Time-Speed-Distance
- Algebra, Geometry, Mensuration
- Data Interpretation (Pie Charts, Bar Graphs)
🌍 General Awareness
- Current Affairs (last 6–12 months)
- Static GK (Capitals, Currencies, National Parks)
- History, Geography, Polity, Economy
Science (Biology, Chemistry, Physics basics)
Selection Process
- Tier I – Computer Based Test (CBT)
- Tier II – Descriptive Paper (Essay + Letter)
- Typing Test/Skill Test (as applicable)
Job Profile & Salary
🔸 Pay Level
- LDC/JSA: Pay Level-2 (₹19,900 – ₹63,200)
- PA/SA: Pay Level-4 (₹25,500 – ₹81,100)
- DEO: Pay Level-4 or 5 (₹25,500 – ₹92,300)
🎯 Preparation Tips
- Start with basics and gradually move to advanced level.
- Practice previous years’ papers (last 5–10 years).
- Take online mock tests regularly.
- Allocate equal time to all four sections daily.
- Focus on accuracy and time management.
Quiz SSC Exams for practice – start here
SSC CHSL Tier I – Topic-wise Practice Sample Q | A for Practice
Each topic includes 10 practice questions of increasing difficulty. Let me know if you’d like them in printable PDF format with solutions.
📘 1. Number System & Simplification
Topics Covered: LCM & HCF, divisibility, surds, BODMAS, remainders
Questions:
Find the HCF of 96 and 144.
What is the LCM of 8, 12, and 15?
Simplify: 3/4+5/6
Divide 1024 by 8 and find the quotient.
√144+√81=?
Simplify: 81−9 / 3×4
What is the remainder when 247 is divided by 5?
Simplify: (4)²+(3)²−2³
Is 729 a perfect cube?
📘 2. Ratio, Proportion, Percentages
Topics Covered: Simple & compound ratios, conversion, percentage increase/decrease
Questions:
If A : B = 2 : 3, and B : C = 4 : 5, find A : C.
Divide ₹7200 in the ratio 5 : 4.
Find 16% of 625.
Increase 400 by 25%.
72 is what percent of 480?
A quantity is increased from 800 to 1000. What is the % increase?
If A : B = 3 : 5, then B : A = ?
Reduce the ratio 84:108 to simplest form.
What percent of 250 is 50?
If 40% of x is 80, find x.
📘 3. Profit, Loss, Discount, SI & CI
Topics Covered: Cost price, selling price, profit/loss %, SI, CI
Questions:
Find profit if CP = ₹300, SP = ₹375.
A loss of 15% on ₹200 gives SP = ?
SP = ₹440, gain = 10%. Find CP.
If MP = ₹200, discount = 10%, find SP.
SI on ₹1000 at 5% for 3 years = ?
CI on ₹1000 at 5% for 2 years = ?
A sells an item at ₹600 and incurs a 20% loss. Find CP.
CP = ₹480, profit = 25%. Find SP.
Difference between SI and CI for ₹5000 at 5% for 2 years?
A shopkeeper marks his goods 40% above CP and allows 20% discount. Find profit %.
📘 4. Time, Work, Speed, Distance
Topics Covered: Efficiency method, train problems, relative speed, races
Questions:
A can do a work in 12 days, B in 18 days. Time taken together?
If speed = 60 km/h and time = 2.5 hrs, find distance.
Two trains of 120 m and 180 m cross each other in 15 sec. Find speed.
A does 3/4 of a job in 6 days. How long to finish full work?
A man covers 90 km in 3 hrs. Find speed in m/s.
A train 300 m long crosses a pole in 30 sec. Find speed.
B is 25% more efficient than A. If A does work in 20 days, B will do in?
If boat speed = 10 km/h and stream = 2 km/h, speed upstream = ?
A and B can complete a job in 15 and 20 days respectively. Find time together.
A covers a distance in 2 hrs at 60 km/h. What if speed is 80 km/h?
📘 5. Algebra, Geometry, Mensuration
Topics Covered: Identities, factorization, area, volume, angles
Questions:
If x=2, find x²+2x+1.
Expand: (a+b)²
Find area of triangle with base 10 cm, height 8 cm.
Area of circle with radius 7 cm = ?
Volume of cube with edge 6 cm = ?
Find value of x if .
Find surface area of cuboid (l=5, b=4, h=3).
In a triangle, one angle is 90°, another is 45°. Find third angle.
Circumference of a circle with diameter 14 cm = ?
Area of square with side 9 cm = ?
📘 6. Data Interpretation (DI)
Topics Covered: Bar graph, pie chart, table-based
Instructions: Based on graphs, you’ll typically answer 4–5 questions. Here’s a sample structure.
Sample Bar Graph: Production of books over 5 months (Jan–May):
Jan: 100
Feb: 120
Mar: 140
Apr: 130
May: 110
Q1. What is the average production?
Q2. In which month was production highest?
Q3. What is the total production over 5 months?
Q4. What is the difference between highest and lowest production months?
Q5. What % of total was produced in March?