Exam Details
2021 Elementary Mathematics
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Questions
100
Duration
180 mins
Package
Combined Defence Services Examination (I) - Previous Year Papers
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Difficulty distribution
100questions
Easy
34
34%
Medium
33
33%
Hard
33
33%
Question type distribution
100questions
Multiple Choices
100
100%
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Full Syllabus
Sample questions from this paper
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2021 · Unclassified
2021 Elementary Mathematics
If the number 413283P759387 is divisible by 13, then what is the value of P ?
2021 · Unclassified
2021 Elementary Mathematics
What is the remainder when 21000000 is divided by 7?
2021 · Unclassified
2021 Elementary Mathematics
How many pairs of (x, y) can be chosen from the set {2, 3, 6, 8, 9} such that \( x/y + y/x = 2 \), where x ≠ y?
2021 · Unclassified
2021 Elementary Mathematics
Consider the pairs of prime numbers (m, n) between 50 and 100 such that m − n = 6. How many such pairs are there?
2021 · Unclassified
2021 Elementary Mathematics
How many terms are there in the following product?
\((a₁ + a₂ + a₃)(b₁ + b₂ + b₃ + b₄)(c₁ + c₂ + c₃ + c₄ + c₅)\)
2021 · Unclassified
2021 Elementary Mathematics
What is the remainder when \(27^{27} - 15^{27}\) is divided by 6?