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free Online Test Problems on H C F and L C M Questions and Answers Quiz 1

Description: Free Online Test questions and answers on Problems on H C F and L C M with explanation for various competitive exams,entrance test. Solved examples with detailed answer test 1

Exercise

"Life is like riding a bicycle. To keep your balance you must keep moving."
- Albert Einstein
1 . The smallest number which when diminished by 7, is divisible by 12, 16, 18, 21 and 28 is
A.  1008 B.    1015
C.  1022 D.    1032
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2 . The HCF of two numbers is 11 and their LCM is 7700. If one of the numbers is 275, then the other is
A.  279 B.    283
C.  308 D.    318
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3 . The product of two numbers is 4107. If the HCF of those numbers is 37, then the greater number is
A.  101 B.    107
C.  109 D.    111
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4 . The greatest possible length which can be used to measure exactly the length 7m, 3m, 85cm, 12m, 95 cm is
A.  15 cm B.    25 cm
C.  35 cm D.    42 cm
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5 . Find the greatest number that will divide 43, 91 and 183 so as to leave the same remained in each case.
A.  4 B.    7
C.  9 D.    13
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6 . The G.C.D. of 1.08, 0.36 and 0.9 is
A.  0.03 B.    0.9
C.  0.18 D.    0.108
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7 . Three numbers are in the ration 1 : 2 : 3 and their HCF is 12. The numbers are
A.  4,8,12 B.    5,10,15
C.  10,20,30 D.    12,24,36
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8 . A rectangular courty 3.78 metres long and 5.25 metres wide is to be paved exactly with square tiles, all of the same size. What is the largest size of the tile which could be used for the purpose?
A.  14 cms B.    21 cms
C.  42 cms D.    Data inadequate
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9 . The product of two numbers is 1320 and their HCF is 6. The LCM of the numbers is
A.  220 B.    1314
C.  1326 D.    7920
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10 . Product of two co-prime numbers is 117. Their LCM should be
A.  1 B.    117
C.  equal to their H.C.F. D.    Cannot be calculated
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