CET HCF and LCM Questions with Solutions – Page 2
All 24 HCF and LCM questions from MBA CET 2025 and 2026 papers. Tap Show answer, or open the detailed solution (free login). Page 2 of 5.
The smallest perfect square number that is exactly divisible by 2, 3, 4, 6, 9, 18, 30, and 60 is k², where k is a natural number.What is the sum of all prime factors of k?
- 8
- 9
- 10
- 11
- 12
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Answer: C. 10
Six bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10, and 12 seconds, respectively. In 30 minutes, how many times do they toll together?
- 15
- 16
- 30
- 31
- 12
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Answer: B. 16
Three numbers are in the ratio of 3:4:5, and their least common multiple (LCM) is 2400. Their highest common factor (HCF) is
- 40
- 80
- 120
- 200
- 15
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Answer: A. 40
Find the HCF of (63/9), 5 (6/17) and (42/51).
- (1/17)
- (2/17)
- (7/17)
- (14/17)
- (1/51)
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Answer: C. (7/17)
Find the HCF and LCM of 0.36, 0.72, and 1.62.
- 1.8 and 6.48
- 0.18 and 6.48
- 0.18 and 64.8
- 1.8 and 64.8
- 0.18 and 0.648
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Answer: B. 0.18 and 6.48