Percentage · solved example
What is 20% of 350?
- 70Correct
- 65
- 75
- 60
Solution
20% of 350 = 20/100 x 350 = 0.2 x 350 = 70.
Police & Paramilitary | Karnataka Police Constable
Quantitative Aptitude for Karnataka Police Constable
Karnataka Police Constable sets 20 Quantitative Aptitude questions for 20 marks in the Written Examination, so it is worth planning your preparation around the topics below.
20 questions20 marks5 topics
How to approach Quantitative Aptitude in Karnataka Police Constable
Speed decides this section. The arithmetic and data-interpretation sets are where the marks are, so the priority is a reliable method and quick calculation rather than exotic shortcuts. Lock down tables, squares and reciprocals, then drill data interpretation until reading the set is faster than solving it.
Weightage in the paper
How much Quantitative Aptitude is worth in each Karnataka Police Constable stage, from the official pattern.
| Stage | Questions | Marks | Time | Share |
|---|---|---|---|---|
| Written Examination | 20 | 20 | — | 20% |
Quantitative Aptitude syllabus for Karnataka Police Constable
Every topic in the official syllabus. The linked ones open a set of solved questions you can practise straight away.
- Number system and simplification
- Percentage, ratio, average and interest
- Profit and loss
- Time, speed, distance and work
- Basic mensuration and data interpretation
Sample Quantitative Aptitude questions with solutions
Written to the Karnataka Police Constable pattern, with the answer key and the method behind it — a look at how the section is actually set before you drill the full topic sets.
Ratio and proportion · solved example
Rs 900 is divided between A and B in the ratio 2 : 3. What is B's share?
- Rs 540Correct
- Rs 360
- Rs 450
- Rs 600
Solution
The ratio 2 : 3 has 5 parts in total. B gets 3 parts, so B's share is 900 x 3/5 = Rs 540.
Speed and distance · solved example
A car travels 240 km in 4 hours. What is its average speed in km/h?
- 60Correct
- 50
- 70
- 80
Solution
Average speed = distance / time = 240 / 4 = 60 km/h.
Simple interest · solved example
Find the simple interest on Rs 5,000 at 6% per annum for 3 years.
- Rs 900Correct
- Rs 750
- Rs 1,080
- Rs 600
Solution
Simple interest = principal x rate x time / 100 = 5000 x 6 x 3 / 100 = Rs 900.
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Practise Quantitative Aptitude
Untimed drills with the method shown after every question — the step between learning a topic and sitting it under a clock.
Calculation speed
195 questions, instant feedback
Data interpretation
105 questions, instant feedback
Mensuration, mixtures and counting
87 questions, instant feedback
Number series
93 questions, instant feedback
Percentage, profit and averages
123 questions, instant feedback
Quadratic equations
69 questions, instant feedback
Interest, ratio and partnership
117 questions, instant feedback
Simplification and approximation
108 questions, instant feedback
Time, speed, distance and work
108 questions, instant feedback
Sit Quantitative Aptitude under a real clock
Quantitative Aptitude shows up in every Karnataka Police Constable mock test, in the same interface, with sectional locking and negative marking.
Frequently asked questions
How many Quantitative Aptitude questions are asked in Karnataka Police Constable?
Karnataka Police Constable 2026 cycle sets 20 Quantitative Aptitude questions for 20 marks in the Written Examination.
Is there negative marking for Quantitative Aptitude in Karnataka Police Constable?
No. The Karnataka Police Constable written stage carries no negative marking, so it is worth attempting every Quantitative Aptitude question you can.
Which Quantitative Aptitude topics matter most for Karnataka Police Constable?
The Karnataka Police Constable syllabus lists Number system and simplification, Percentage, ratio, average and interest, Profit and loss, Time, speed, distance and work, Basic mensuration and data interpretation. Weight your revision towards the ones you are weakest on and confirm the emphasis against the paper analysis for recent cycles.
How can I practise Quantitative Aptitude for Karnataka Police Constable free?
Every Quantitative Aptitude question on this site is free and written to the exam pattern. Use the topic drills for instant-feedback practice, the daily quiz to keep the section warm, and the Karnataka Police Constable mock tests to sit it under a real clock with negative marking.