Number System MCQs (Free Practice Questions)
Practice 10 carefully selected Number System MCQs with explanations. Continue practicing 500+ chapter-wise questions inside the Exam Sprinter app.
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Number System is a key topic in Quantitative Aptitude for the SSC CHSL exam. It covers essential principles, core formulas, and practical problem-solving methods tested in previous years. This page offers a complete cheat sheet, standard formulas, and 10 interactive sample practice questions with detailed solutions.
What is Number System?
Number System covers the essential principles and concepts required for SSC CHSL.
π‘ Why Study Number System?
Highly important, frequently tested in SSC CHSL.
| Parameter | Details / Relevance |
|---|---|
| Target Exam | SSC CHSL |
| Subject Category | Quantitative Aptitude |
| Recommended Study Duration | 10 Hours |
| Expected Questions | 2 Questions |
| Difficulty Index | Medium |
| Interactive Solved MCQs | 10 Questions (Complete Explanations) |
| Adaptive App Practice | 500+ Questions & AI Tutor Supported |
β οΈ Common Pitfalls to Avoid
- Neglecting foundational prerequisites (make sure you review related chapters in the learning path).
- Calculation and sign convention errors during numerical steps.
- Confusing intermediate results with the final correct answer options.
πΊοΈ Recommended learning path
What You Will Learn
- β Number System Fundamentals
- β Key applications of Number System
- β Advanced problem solving in Number System
Cheat Sheet & Formulas
- $$\text{Speed} = \frac{\text{Distance}}{\text{Time}}$$
- $$\text{Work} = \text{Efficiency} \times \text{Time}$$
Practice Questions
If the sum of two numbers is 21 and their difference is 5, find the product of the two numbers.
The average mark of 76 students in a test is 38. If the marks of one student is corrected from 30 to 80, the new average is:
A sells a watch to B at a gain of 25% and B sells it to C at a loss of 10%. If C pays $470 for it, how much did A pay for it?
If A and B can complete a work in 10 and 15 days respectively. Working together, in how many days will they finish the work?
Find the compound interest on $7700 for 2 years at 9% per annum, compounded annually.
A train of length 390 m crosses a platform of length 70 m in 21 seconds. What is the speed of the train in km/h?
If the ratio of ages of A and B is 6:7, and the sum of their ages is 45, what is A's age?
A shopkeeper marks his items 43% above cost price and then offers a discount of 3%. What is his net profit percentage?
If , then find the value of .
Find the value of if has equal roots.
Want to master Number System?
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Frequently Asked Questions
Is Number System difficult for the exam?βΌ
Yes, Number System requires strong conceptual clarity and practice of standard SSC CHSL style questions.
β Key Takeaways for Number System
- High exam relevance: 2 questions on average are expected from this chapter.
- Standard formulas: Comprehensive formula sheets and formulas are fully covered in the cheat sheet section above.
- Practice and explanation: 10 standard MCQs are solved step-by-step to clarify common numerical and conceptual methods.
- Step-by-step learning: Start with the formulas, work through the questions, and then download the mobile app for extensive practice.