Discussion
Home ‣ Aptitude ‣ HCF and LCM Comments
- Question
The minimum value of LCM of given numbers is ........... the product of all the given numbers.
Options- A. always greater than
- B. always less than
- C. always equal to
- D. None
- Correct Answer
- None
- 1. If the product of two numbers is 3026 and their LCM is 89, then their HCF is :
Options- A. 33
- B. 34
- C. 35
- D. 29 Discuss
- 2. Find the HCF of 3341 and 3328.
Options- A. 257
- B. 337
- C. 13
- D. 31 Discuss
- 3. A student can divide her books into groups of 5, 9 and 13. what is the smallest possible number of the books ?
Options- A. 487
- B. 585
- C. 635
- D. 705 Discuss
- 4. If the sum of two numbers is 55 and the H.C.F and L.C.M of these numbers are 5 and 120 respectively, then the sum of the reciprocals of the numbers is equal to
Options- A. 55/601
- B. 601/55
- C. 11/120
- D. 120/11 Discuss
- 5. LCM of two co-prime numbers a and b is (a is greater than b):
Options- A. a
- B. a+b
- C. ab
- D. b Discuss
- 6. The HCF of two numbers is 11 and their LCM is 330. If one of the number is 55. Find the other number.
Options- A. 33
- B. 66
- C. 44
- D. 77 Discuss
- 7. If the product of two numbers is 4941 and their LCM is 81, then their HCF is :
Options- A. 60
- B. 59
- C. 35
- D. 61 Discuss
- 8. Two numbers are in the ratio 3:5 and their HCF is 20. Their LCM is
Options- A. 30
- B. 300
- C. 60
- D. 10 Discuss
- 9. HCF and LCM of two numbers are 11 and 825 respectively. If one number is 275 find the other number.
Options- A. 53
- B. 45
- C. 33
- D. 43 Discuss
- 10. Two numbers are in the ratio of 15 : 11. If their HCF is 13, then the greater number is?
Options- A. 195
- B. 125
- C. 175
- D. 125 Discuss
Search Results
Correct Answer: 34
Correct Answer: 13
Correct Answer: 585
Explanation:
The smallest possible number of books = L.C.M of 5, 9 and 13.
Therefore, L.C.M of 5,9 and 13 is = 5 x 9 x 13 = 585.
Correct Answer: 11/120
Explanation:
Let the numbers be a and b . Then, a+b =55 and ab = 5 x 120 = 600.
Therefore, Required sum =
Correct Answer: ab
Correct Answer: 66
Correct Answer: 61
Correct Answer: 300
Correct Answer: 33
Correct Answer: 195
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