H.C.F & L.C.M. of Numbers Questions and Answers
Quantitative Aptitude - H.C.F & L.C.M. of Numbers Questions with Answers help calculate factors and multiples quickly. HCF & LCM Aptitude is crucial for SSC, banking, and placement exams to enhance numerical reasoning skills.
H.C.F & L.C.M. of Numbers
Showing 10 of
65 questions
51. The least number which when divided by 5, 6 , 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder, is:
- 1677
- 1683
- 2523
- 3363
52. A, B and C start at the same time in the same direction to run around a circular stadium. A completes a round in 252 seconds, B in 308 seconds and c in 198 seconds, all starting at the same point. After what time will they again at the starting point ?
- 26 minutes and 18 seconds
- 42 minutes and 36 seconds
- 45 minutes
- 46 minutes and 12 seconds
53. The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one of the numbers is 275, then the other is:
- 279
- 283
- 308
- 318
54. What will be the least number which when doubled will be exactly divisible by 12, 18, 21 and 30 ?
- 196
- 630
- 1260
- 2520
55. The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is:
- 1008
- 1015
- 1022
- 1032
56. 252 can be expressed as a product of primes as:
- 2 x 2 x 3 x 3 x 7
- 2 x 2 x 2 x 3 x 7
- 3 x 3 x 3 x 3 x 7
- 2 x 3 x 3 x 3 x 7
57. The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m 85 cm, 12 m 95 cm is:
- 15 cm
- 25 cm
- 35 cm
- 42 cm
58. Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is:
- 75
- 81
- 85
- 89