HCF and LCM Aptitude Questions Practice Question and Answer

Q:

The greatest number, which when subtracted from 5834, gives a number exactly divisible by each of 20, 28, 32 and 35, is 

1929 0

  • 1
    1120
    Correct
    Wrong
  • 2
    4714
    Correct
    Wrong
  • 3
    5200
    Correct
    Wrong
  • 4
    5600
    Correct
    Wrong
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Answer : 2. "4714 "

Q:

The HCF and LCM of two numbers are 3 and 2730 respectively. If one of the numbers is 78, find the other number.

1896 0

  • 1
    107
    Correct
    Wrong
  • 2
    103
    Correct
    Wrong
  • 3
    105
    Correct
    Wrong
  • 4
    102
    Correct
    Wrong
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Answer : 3. "105"

Q:

The HCF and LCM of two numbers are 12 and 924 respectively. Then the number of such pairs is: 

1891 0

  • 1
    2
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    0
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 1. "2 "

Q:

The L.C.M. of two numbers is 4 times their H.C.F. The sum of L.C.M. and H.C.F is 125. If one of the numbers is 100, then the other number is-

1881 0

  • 1
    100
    Correct
    Wrong
  • 2
    125
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 4. "25 "

Q:

The least number which when divided by 4, 6, 8, 12 and 16 leaves a remainder of 2 in each case is: 

1833 0

  • 1
    46
    Correct
    Wrong
  • 2
    48
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    56
    Correct
    Wrong
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Answer : 3. "50 "

Q:

The HCF and LCM of two numbers are 44 and 264 respectively. If the first number is divided by 2, the quotient is 44. The other number is:

1814 0

  • 1
    147
    Correct
    Wrong
  • 2
    528
    Correct
    Wrong
  • 3
    132
    Correct
    Wrong
  • 4
    264
    Correct
    Wrong
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Answer : 3. "132 "

Q:

Four bells ring at the intervals of 5, 6, 8, and 9 seconds. All the bells ring simultaneously at the same time. They will again ring simultaneously after: 

1805 0

  • 1
    12 minutes
    Correct
    Wrong
  • 2
    18 minutes
    Correct
    Wrong
  • 3
    6 minutes
    Correct
    Wrong
  • 4
    24 minutes
    Correct
    Wrong
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Answer : 3. "6 minutes "

Q:

The traffic lights at three different road crossings change after 24 seconds, 36 seconds and 54 seconds respectively. If they all change simultaneously at 10 : 15 : 00 AM, then at what time will they again change simultaneously? 

1805 0

  • 1
    10:16:54 AM
    Correct
    Wrong
  • 2
    10:18:36 AM
    Correct
    Wrong
  • 3
    10:17:02 AM
    Correct
    Wrong
  • 4
    10:22:12 AM
    Correct
    Wrong
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Answer : 2. "10:18:36 AM"

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