RMSCET · Mathematics

HCF questions with answers

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Five questions to begin your revision

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01Medium · ✓ Verified answer

Rashtriya Military Schools CET practice check: What is the highest common factor of 100 and 120?

  1. 19
  2. 20
  3. 21
  4. 40
Check answer and explanation +
B — 20

100 = 20 × 5 and 120 = 20 × 6. Since 5 and 6 are coprime, the HCF is 20. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · HCF; mapped to the published Rashtriya Military Schools CET quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
02Medium · ✓ Verified answer

Rashtriya Military Schools CET high-priority drill: What is the highest common factor of 105 and 126?

  1. 21
  2. 22
  3. 42
  4. 20
Check answer and explanation +
A — 21

105 = 21 × 5 and 126 = 21 × 6. Since 5 and 6 are coprime, the HCF is 21. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · HCF; mapped to the published Rashtriya Military Schools CET quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
03Medium · ✓ Verified answer

Rashtriya Military Schools CET foundation revision: What is the highest common factor of 110 and 132?

  1. 23
  2. 44
  3. 21
  4. 22
Check answer and explanation +
D — 22

110 = 22 × 5 and 132 = 22 × 6. Since 5 and 6 are coprime, the HCF is 22. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · HCF; mapped to the published Rashtriya Military Schools CET quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
04Medium · ✓ Verified answer

Rashtriya Military Schools CET speed-building set: What is the highest common factor of 115 and 138?

  1. 46
  2. 22
  3. 23
  4. 24
Check answer and explanation +
C — 23

115 = 23 × 5 and 138 = 23 × 6. Since 5 and 6 are coprime, the HCF is 23. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · HCF; mapped to the published Rashtriya Military Schools CET quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
05Medium · ✓ Verified answer

Rashtriya Military Schools CET accuracy checkpoint: What is the highest common factor of 120 and 144?

  1. 23
  2. 24
  3. 25
  4. 48
Check answer and explanation +
B — 24

120 = 24 × 5 and 144 = 24 × 6. Since 5 and 6 are coprime, the HCF is 24. The displayed answer was independently recomputed during publication.

Source: NCERT Mathematics Classes VI–X · HCF; mapped to the published Rashtriya Military Schools CET quantitative/numeracy area; answer independently recomputed. Syllabus-aligned practice—not a previous-year question.
✓

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