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Indian Navy SSR Real Numbers — practice questions

Explore 3 free Real Numbers questions in Indian Navy SSR Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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Real Numbers questions and exercises with answers

Showing questions 1–3 of 3.

The Fundamental Theorem of Arithmetic guarantees that:Read the answer and worked solution →Find the HCF of 24 and 36.Read the answer and worked solution →The decimal expansion of 1/6 is:Read the answer and worked solution →

Worked practice questions

The Fundamental Theorem of Arithmetic guarantees that:

  1. no two primes are equal
  2. primes are infinite
  3. composites factor uniquely
  4. all integers are prime
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Correct answer: C. composites factor uniquely

The theorem says: every composite number factorises into primes, and that factorisation is unique up to the order of the factors.

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Find the HCF of 24 and 36.

  1. 8
  2. 18
  3. 12
  4. 6
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Correct answer: C. 12

24 = 2³·3 and 36 = 2²·3². HCF = 2² · 3 = 12.

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The decimal expansion of 1/6 is:

  1. non-terminating non-recurring
  2. non-terminating recurring
  3. terminating
  4. irrational
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Correct answer: B. non-terminating recurring

6 = 2 × 3. The factor 3 (≠ 2, 5) forces the decimal to recur: 1/6 = 0.1666… (the 6 repeats).

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More Mathematics topics

SequencesBinomial TheoremSequences and SeriesProbability & StatisticsGeometryPermutations and CombinationsLinear ProgrammingVectors & 3D Geometry