HCF and LCM Aptitude Questions Practice Question and Answer
8 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: The least number, which is a perfect square and is divisible by each of the numbers 16, 20 and 24 is
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5f07fe11bc929f40b0b9d578- 16400false
- 214400false
- 31600false
- 43600true
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Answer : 4. "3600 "
Q: The HCF of two numbers is 96 and their LCM is 1296. If one of the numbers is 864, the other is
987 0604877586b33de2b73845fe5
604877586b33de2b73845fe5- 1140false
- 2144true
- 3132false
- 4135false
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Answer : 2. "144"
Q: Find the total number of Prime Factors of 720 ?
982 05e7f48024e941d3661d5588e
5e7f48024e941d3661d5588e- 15false
- 230false
- 37true
- 48false
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Answer : 3. "7 "
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:
976 05f1a7ee28ae6514e222c0c26
5f1a7ee28ae6514e222c0c26- 185true
- 289false
- 375false
- 481false
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Answer : 1. "85 "
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
975 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: The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.
971 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:
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606aef31556643278a72811e- 159false
- 260false
- 335false
- 461true
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