Data Interpretation
JKSSB Sub-Inspector (Executive) · Mathematics · 100 practice questions with answers and explanations: 31 Easy, 38 Medium, 31 Hard.
Sample questions
Sample Easy question 1
In a school of 600 students, 40% are girls. How many are boys?
- 355
- 358
- 360
- 362
Show answer
Answer: C. Girls = 40% of 600 = 240, boys = 600 - 240 = 360.
Sample Medium question 2
A test has 150 questions. A student attempted 80% and got 75% of those correct. How many correct answers did they get?
- 85
- 88
- 90
- 92
Show answer
Answer: C. Attempted = 120; correct = 75% of 120 = 90.
Sample Hard question 3
A city's population increased by 10% in year 1 and by a further 10% in year 2. If the initial population was 1,00,000, find the population after year 2.
- 1,18,000
- 1,19,000
- 1,21,000
- 1,22,000
Show answer
Answer: C. After year 1: 1,10,000. After year 2: 1,10,000 × 1.1 = 1,21,000.
More Mathematics topics for JKSSB Sub-Inspector (Executive)
- Algebra
- Average
- Geometry
- Height & Distance
- Mensuration
- Mixture & Alligation
- Number System
- Percentage
- Profit/Loss & Discount
- Ratio & Proportion
- Simple & Compound Interest
- Simplification & Approximation
- Time & Work / Pipes & Cisterns
- Time, Speed & Distance
- Trigonometry