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RRB NTPC LCM and HCF — practice questions — page 3

Explore 62 free LCM and HCF questions in RRB NTPC Mathematics. Open each question or exercise to read its content, reference answers and available explanation.

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LCM and HCF questions and exercises with answers

Showing questions 61–62 of 62.

Worked practice questions

Find the Least Common Multiple (LCM) of the numbers 12 and 18:

  1. 24
  2. 36
  3. 48
  4. 72
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Correct answer: B. 36

Multiples of 18: 18, 36. 36 is divisible by 12. Hence LCM = 36.

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RRB NTPC · HCF and LCM Calculations

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Matching pairs
  1. Left
    HCF of 16, 28, and 72
    Right
    4
  2. Left
    LCM of 12 and 18
    Right
    36
  3. Left
    HCF of 36 and 48
    Right
    12
  4. Left
    LCM of 4, 6, and 8
    Right
    24
Instructions
Match number sets to their HCF or LCM

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