CDS (II) 2022 · Elementary Mathematics
A full Elementary Mathematics paper in the UPSC CDS pattern: 100 questions in 2 hours, with a third of the question's marks deducted for every wrong answer. Arithmetic, algebra, trigonometry, geometry, mensuration and statistics at Class 10 level, against the clock.
100questions
100marks
2 hoursno calculator
35/53/12easy / medium / hard
Topics in this paper
Mathematics · 100 questions
- Heights and distances6
- Triangles5
- Circles5
- Quadratic equations4
- Trigonometric identities4
- Percentage3
- Averages3
- Indices3
- LCM2
- Number system2
- Profit and loss2
- Simple interest2
- Ratio2
- Time and work2
Sample question from this paper
LCM · medium
The greatest 3-digit number divisible by each of 18, 24 and 36 is
- A. 864
- B. 972
- C. 990
- D. 936
Show answer and solution
Answer: D
. Since , the greatest 3-digit multiple is . Subtracting only the remainder of one divisor, or using 36 as the LCM, gives 972, which is not divisible by 24.
. Since , the greatest 3-digit multiple is . Subtracting only the remainder of one divisor, or using 36 as the LCM, gives 972, which is not divisible by 24.