HCF and LCM Aptitude Questions Practice Question and Answer

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:

1720 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:

What least number must be subtracted from 1936 so that the resulting number when divided by 9, 10 and 15 will leave in each case the same remainder 7? 

1718 0

  • 1
    39
    Correct
    Wrong
  • 2
    30
    Correct
    Wrong
  • 3
    37
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
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Answer : 1. "39 "

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? 

1714 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"

Q:

The smallest number, which when increased by 5 is divisible by each of 24, 32, 36 and 54, is 

1699 0

  • 1
    571
    Correct
    Wrong
  • 2
    427
    Correct
    Wrong
  • 3
    869
    Correct
    Wrong
  • 4
    859
    Correct
    Wrong
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Answer : 4. "859 "

Q:

The HCF of two numbers is 96 and their LCM is 1296. If one of the numbers is 864, the other is

1690 0

  • 1
    140
    Correct
    Wrong
  • 2
    144
    Correct
    Wrong
  • 3
    132
    Correct
    Wrong
  • 4
    135
    Correct
    Wrong
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Answer : 2. "144"

Q:

What will be the greatest common factor of 96, 528, 2160, 3520?

1658 0

  • 1
    8
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    24
    Correct
    Wrong
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Answer : 2. "16"

Q:

What is the L.C.M of 12, 23, 24?

1658 0

  • 1
    120
    Correct
    Wrong
  • 2
    529
    Correct
    Wrong
  • 3
    552
    Correct
    Wrong
  • 4
    562
    Correct
    Wrong
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Answer : 3. "552"

Q:

Two numbers are in the ratio 3 : 4. Their L.C.M. is 84. The greater number is 

1651 0

  • 1
    28
    Correct
    Wrong
  • 2
    84
    Correct
    Wrong
  • 3
    21
    Correct
    Wrong
  • 4
    24
    Correct
    Wrong
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Answer : 1. "28"

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