6th Class Mathematics Fractions Question Bank

done LCM and HCF Total Questions - 40

• question_answer1)
  Which one among the following statements is not true?
  A)
  The LCM of two or more given numbers is the lowest of their common multiple. done clear
  B)
  The HCF of two or more given numbers is the highest of their common factors. done clear
  C)
  The numbers having more than two factors are called coprime numbers. done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer2)
  The ratio between two numbers is 8:5 and their LCM is 360. The larger number is___.
  A)
  24 done clear
  B)
  72 done clear
  C)
  48 done clear
  D)
  36 done clear
  E)
  None of these done clear
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• question_answer3)
  Which one among the following is most appropriate for coprimes?
  A)
  Numbers having more than two factors are called coprimes. done clear
  B)
  Two numbers are called coprimes, if there is no common factor other than 1, between these two numbers. done clear
  C)
  Two numbers are called coprimes, if there is no common factor other than 2, between these two numbers. done clear
  D)
  Pair of prime numbers are called coprimes. done clear
  E)
  None of these done clear
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• question_answer4)
  The least number which when divided by 4, 5 and 6 leaves remainder 3 in each case, is_____.
  A)
  63 done clear
  B)
  67 done clear
  C)
  71 done clear
  D)
  252 done clear
  E)
  None of these done clear
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• question_answer5)
  Find the LCM of 9, 14, 15, 18, 12.
  A)
  126 done clear
  B)
  252 done clear
  C)
  630  done clear
  D)
  1260 done clear
  E)
  None of these done clear
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• question_answer6)
  The LCM of three prime numbers are 4991. Find the between these prime numbers,
  A)
  47 done clear
  B)
  19 done clear
  C)
  29 done clear
  D)
  31 done clear
  E)
  None of these done clear
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• question_answer7)
  The LCM of two numbers is 27. The numbers cannot be____.
  A)
  3, 27 done clear
  B)
  1. 27 done clear
  C)
  3, 9 done clear
  D)
  9, 27 done clear
  E)
  None of these done clear
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• question_answer8)
  The HCF of two numbers is 48. The product of the numbers can be___.
  A)
  3200 done clear
  B)
  2400 done clear
  C)
  48 done clear
  D)
  4608 done clear
  E)
  None of these done clear
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• question_answer9)
  The product of two numbers is 324. Their HCF can be______.
  A)
  54 done clear
  B)
  9 done clear
  C)
  4 done clear
  D)
  27 done clear
  E)
  None of these done clear
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• question_answer10)
  The product of two numbers is 840. Their LCM can be
  A)
  210 done clear
  B)
  70 done clear
  C)
  420 done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer11)
  The HCF and LCM of the numbers 780 and 210 are respectively ___
  A)
  30, 5460 done clear
  B)
  60, 2730 done clear
  C)
  90, 10920 done clear
  D)
  30, 2730 done clear
  E)
  None of these done clear
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• question_answer12)
  A rectangular courtyard with length 10m 50cm and breadth 4m 20cm is to be paved with square stones of the same size. The least number of such stones required are___.
  A)
  20 done clear
  B)
  10 done clear
  C)
  8  done clear
  D)
  6 done clear
  E)
  None of these done clear
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• question_answer13)
  Least common multiple number of two numbers is 360. Then which one of the following cannot be the highest common factor of the numbers.
  A)
  36 done clear
  B)
  24 done clear
  C)
  16 done clear
  D)
  15 done clear
  E)
  None of these done clear
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• question_answer14)
  Find the LCM of the numbers 10, 7, 8, 11, 52, 27.
  A)
  1181820 done clear
  B)
  1081080 done clear
  C)
  2162160 done clear
  D)
  540540 done clear
  E)
  None of these done clear
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• question_answer15)
  The least common multiple of four numbers is 720. If three numbers are 16, 10 and 40 then fourth number can be _______.
  A)
  75  done clear
  B)
  144 done clear
  C)
  80 done clear
  D)
  54 done clear
  E)
  None of these done clear
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• question_answer16)
  The product of two numbers is 11016 and their HCF is 18. Find their LCM.
  A)
  1224     done clear
  B)
  612 done clear
  C)
  112 done clear
  D)
  560 done clear
  E)
  None of these done clear
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• question_answer17)
  The HCF of the greatest two digit prime numbers and the greatest four digit numbers is ___
  A)
  195 done clear
  B)
  199 done clear
  C)
  1 done clear
  D)
  97 done clear
  E)
  None of these done clear
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• question_answer18)
  The sum of two numbers is 324 and their HCF is 9. Find the numbers.
  A)
  18, 306  done clear
  B)
  315, 9 done clear
  C)
  27, 297 done clear
  D)
  All the above done clear
  E)
  None of these done clear
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• question_answer19)
  The HCF and LCM of two numbers are 28 and 1176 respectively. If the difference between the numbers is 308, then the numbers can be
  A)
  1176, 28 done clear
  B)
  412, 104 done clear
  C)
  392, 84 done clear
  D)
  402, 94 done clear
  E)
  None of these done clear
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• question_answer20)
  Swapnesh wants to mail three parcels to three village schools. He finds that the postal charges are Rs 42, Rs 63 and Rs 294. He wants to buy stamps only of one denomination. Find the greatest denomination of stamps he must buy to mail the three parcels.
  A)
  23 done clear
  B)
  21 done clear
  C)
  27 done clear
  D)
  31 done clear
  E)
  None of these done clear
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• question_answer21)
  The HCF of two numbers is 35 and the other two factors of their LCM are 11 and 17. Find the larger of the two numbers.
  A)
  595 done clear
  B)
  365 done clear
  C)
  275 done clear
  D)
  385 done clear
  E)
  None of these done clear
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• question_answer22)
  Six bells are tolled together They toil at the  of 3, 5, 8, 9, 12 and 15 seconds respectively in 24 hours, how many times do they toll together?
  A)
  4  done clear
  B)
  120 done clear
  C)
  12 done clear
  D)
  240 done clear
  E)
  None of these done clear
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• question_answer23)
  In a school library there are 1080 books of Mathematics and 792 books of Science. Ms Shilpi, the librarian of the school wants to store these books in shelves such that each shelf should have the same number of books of each subject. What should be the minimum number of each subject in each shelf?
  A)
  72 done clear
  B)
  36 done clear
  C)
  108   done clear
  D)
  2310 done clear
  E)
  None of these done clear
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• question_answer24)
  The product of two numbers is 9126. If HCF of the numbers is 39, find the larger numbers.
  A)
  39 done clear
  B)
  78 done clear
  C)
  156  done clear
  D)
  117 done clear
  E)
  None of these done clear
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• question_answer25)
  HCF of two numbers is 42. If the product of the numbers is 15876, then possible number of such pairs is_______
  A)
  1 done clear
  B)
  2 done clear
  C)
  3 done clear
  D)
  4 done clear
  E)
  None of these done clear
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• question_answer26)
  The least multiple of 7 which leaves a remainder of 5 when divided by 13, 15, 18 and 36, is____.
  A)
  2345 done clear
  B)
  235 done clear
  C)
  335  done clear
  D)
  2340 done clear
  E)
  None of these done clear
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• question_answer27)
  Three tankers can contain 391 litres, 483 litres and 667 litres of diesel respectively. Find the maximum capacity of a container which can measure the diesel of the three containers exact number of times,
  A)
  17 litres  done clear
  B)
  21 litres done clear
  C)
  23 litres  done clear
  D)
  29 litres done clear
  E)
  None of these done clear
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• question_answer28)
  The least number which when doubled will be exactly divisible by 24, 16, 21 and 28 is ____.
  A)
  336    done clear
  B)
  168 done clear
  C)
  672 done clear
  D)
  330 done clear
  E)
  None of these done clear
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• question_answer29)
  The smallest 5 digit number exactly divisible by 6, 7, 8, 9and 10 is ____.
  A)
  10080 done clear
  B)
  25200 done clear
  C)
  10008   done clear
  D)
  10540 done clear
  E)
  None of these done clear
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• question_answer30)
  Find the least possible length which can exactly measure the lengths 12 m, 14 m 85 cm and 10 m 8 cm.
  A)
  8316 m  done clear
  B)
  3456 m done clear
  C)
  5468 m done clear
  D)
  6902 m done clear
  E)
  None of these done clear
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• question_answer31)
  The HCF of 2.59, 6.29 and 3.7 is _____.
  A)
  0.74 done clear
  B)
  7.4 done clear
  C)
  0.37   done clear
  D)
  3.7 done clear
  E)
  None of these done clear
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• question_answer32)
  The LCM of 174, 319 and 377 is _____.
  A)
  24882 done clear
  B)
  24412 done clear
  C)
  329246  done clear
  D)
  29264 done clear
  E)
  None of these done clear
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• question_answer33)
  Which of the following statements is correct?
  A)
  The HCF of two distinct prime numbers is not 1. done clear
  B)
  The HCF of two co prime numbers is not 1. done clear
  C)
  The HCF of an even and odd number is not even. done clear
  D)
  The HCF of two consecutive odd numbers is not 1. done clear
  E)
  None of these done clear
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• question_answer34)
  The greatest number which on dividing 6997 and 5222, leaves a remainder of 12 and 15 respectively, is _____.
  A)
  127 done clear
  B)
  129 done clear
  C)
  133 done clear
  D)
  141 done clear
  E)
  None of these done clear
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• question_answer35)
  The largest number which divides 625,856 and 1626 to leave the same remainder, is _____.
  A)
  33 done clear
  B)
  21 done clear
  C)
  77 done clear
  D)
  147 done clear
  E)
  None of these done clear
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• question_answer36)
  Six bells commence tolling together and toll at the intervals of 3, 5, 8, 10, 12 and 15 seconds respectively in 2 hours. How many times they will toll together?
  A)
  30 done clear
  B)
  12 done clear
  C)
  60 done clear
  D)
  1 done clear
  E)
  None of these done clear
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• question_answer37)
  If the ratio of two numbers is 5: 6 and their HCF is 8, then find their LCM.
  A)
  300 done clear
  B)
  120 done clear
  C)
  240 done clear
  D)
  160 done clear
  E)
  None of these done clear
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• question_answer38)
  If the product of two numbers is 1259712 and their HCF is 27 then find their LCM.
  A)
  46656 done clear
  B)
  48658 done clear
  C)
  52560 done clear
  D)
  38902 done clear
  E)
  None of these done clear
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• question_answer39)
    Among three co-prime numbers, the product of the first two is 18304 and the product of the last two is 72576, find the sum of these numbers.
  A)
  588 done clear
  B)
  764 done clear
  C)
  686 done clear
  D)
  838 done clear
  E)
  None of these done clear
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• question_answer40)
  Find the HCF of\[\frac{2}{3},\frac{10}{9},\frac{4}{15}\].
  A)
  \[\frac{1}{9}\] done clear
  B)
  \[\frac{2}{45}\]  done clear
  C)
  \[\frac{1}{33}\]    done clear
  D)
  \[\frac{1}{18}\] done clear
  E)
  None of these done clear
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