HCF and LCM Aptitude Questions Practice Question and Answer
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Q: The LCM of 1.2 and 2.7 is:
1009 0647f503723e51f4777029535
647f503723e51f4777029535- 15.4false
- 210.8true
- 31.08false
- 432.4false
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Answer : 2. "10.8"
Q: On dividing 256a2b2c2 by 64a2, we get
1003 062ce947e31b6d2015533b673
62ce947e31b6d2015533b673- 14false
- 24b2c2true
- 32c2false
- 42b2false
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Answer : 2. "4b2c2"
Q: What is the L.C.M of 12, 36, 6 and 9?
996 0609b5df18ea85b2491042c93
609b5df18ea85b2491042c93- 136true
- 2144false
- 3108false
- 462false
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Answer : 1. "36"
Q: The HCF and the LCM of two numbers are 5 and 120, respectively. If the sum of the two numbers is 55, then the sum of the reciprocals of these two numbers is equal to:
988 0642256d95bff3d098d0b919f
642256d95bff3d098d0b919f- 1$${{55}\over{601}}$$false
- 2$${{11}\over{120}}$$true
- 3$${{120}\over{11}}$$false
- 4$${{601}\over{55}}$$false
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Answer : 2. "$${{11}\over{120}}$$"
Q: The greatest common factor of two co-prime numbers will be
979 0632285644eed097ecb55b1a3
632285644eed097ecb55b1a3- 10false
- 21true
- 32false
- 43false
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Answer : 2. "1"
Q: Find the LCM and HCF of 27 and 81.
940 0630df59c5dea296d12575e78
630df59c5dea296d12575e78- 181; 27true
- 281; 81false
- 327; 81false
- 427; 27false
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Answer : 1. "81; 27"
Q: The LCM of four consecutive numbers is 60 The sum of the first two numbers is equal to the fourth number. What is the sum of four numbers?
937 06400902386fd4161466a44c5
6400902386fd4161466a44c5- 117false
- 214true
- 321false
- 424false
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Answer : 2. "14"
Q: If the LCM of two numbers is 288 and their ratio is 4 : 9, then HCF of the numbers is :
931 0631f2cfa671e1904db71f4c0
631f2cfa671e1904db71f4c0- 17false
- 28true
- 39false
- 411false
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Answer : 2. "8"
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