HCF and LCM Aptitude Questions Practice Question and Answer
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Q: What is the L.C.M of 12, 36, 6 and 9?
948 0609b5df18ea85b2491042c93
609b5df18ea85b2491042c93- 136true
- 2144false
- 3108false
- 462false
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Answer : 1. "36"
Q: The greatest common factor of two co-prime numbers will be
935 0632285644eed097ecb55b1a3
632285644eed097ecb55b1a3- 10false
- 21true
- 32false
- 43false
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Answer : 2. "1"
Q: The smallest five digit number which is divisible by 12, 18 and 21 is:
922 064008e9486fd4161466a42f7
64008e9486fd4161466a42f7- 110080true
- 230256false
- 310224false
- 450321false
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Answer : 1. "10080 "
Q: The LCM of 1.2 and 2.7 is:
914 0647f503723e51f4777029535
647f503723e51f4777029535- 15.4false
- 210.8true
- 31.08false
- 432.4false
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Answer : 2. "10.8"
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:
901 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: If the LCM of two numbers is 288 and their ratio is 4 : 9, then HCF of the numbers is :
882 0631f2cfa671e1904db71f4c0
631f2cfa671e1904db71f4c0- 17false
- 28true
- 39false
- 411false
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Answer : 2. "8"
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?
877 06400902386fd4161466a44c5
6400902386fd4161466a44c5- 117false
- 214true
- 321false
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Answer : 2. "14"
Q: What is the L.C. M of $$ {2\over 5},{3\over 10},{4\over 15}$$.
876 0602cc7819f2a38430905cdb8
602cc7819f2a38430905cdb8- 1$$ {12\over 15}$$false
- 2$$ {1\over 30}$$false
- 3$$ {12\over 5}$$true
- 4None of thesefalse
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Answer : 3. "$$ {12\over 5}$$"
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