HCF and LCM Aptitude Questions Practice Question and Answer
8 Q: Three men step off together from the same spot. Their steps measure 63 cm, 70 cm and 77 cm respectively. The minimum distance each should cover so that all can cover the distance in complete steps is
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5dcba89da09a1624d197d480- 19630 cmfalse
- 29360 cmfalse
- 36930 cmtrue
- 46950 cmfalse
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Answer : 3. "6930 cm "
Q: If the least common multiple(LCM) of two numbers is 231, the Highest common multiple(H.C.F) of both numbers is 11 and the first number is 77, then the second number is
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5f1aa60f64a4af418928cb9c- 147false
- 237false
- 357false
- 433true
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Answer : 4. "33"
Q: Three Alarm make a beep after every 48 sec, 72 sec and 108 sec respectively. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest is
1031 05f40d8e8b8958f14fa2af581
5f40d8e8b8958f14fa2af581- 110:07:36 hrsfalse
- 210:07:24 hrsfalse
- 310:07:12 hrstrue
- 410:07:48 hrsfalse
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Answer : 3. "10:07:12 hrs"
Q: Find the total number of Prime Factors of 720 ?
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5e7f48024e941d3661d5588e- 15false
- 230false
- 37true
- 48false
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Answer : 3. "7 "
Q: The HCF of two numbers is 96 and their LCM is 1296. If one of the numbers is 864, the other is
1023 0604877586b33de2b73845fe5
604877586b33de2b73845fe5- 1140false
- 2144true
- 3132false
- 4135false
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Answer : 2. "144"
Q: The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.
1016 06073ff4363b9781494d851e2
6073ff4363b9781494d851e2- 1107false
- 2103false
- 3105true
- 4102false
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Answer : 3. "105"
Q: If the product of two numbers is 4941 and their LCM is 81, then their HCF is:
1014 0606aef31556643278a72811e
606aef31556643278a72811e- 159false
- 260false
- 335false
- 461true
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Answer : 4. "61"
Q: Three numbers which are co-prime to one another 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:
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5f1a7ee28ae6514e222c0c26- 185true
- 289false
- 375false
- 481false
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