HCF and LCM Aptitude Questions Practice Question and Answer

Q:

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

1408 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:

Two numbers are in the ratio 3 : 5 and their HCF is 20. Their LCM is

1400 0

  • 1
    60
    Correct
    Wrong
  • 2
    300
    Correct
    Wrong
  • 3
    30
    Correct
    Wrong
  • 4
    10
    Correct
    Wrong
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Answer : 2. "300"

Q:

The product of the LCM and HCF of two numbers is 24. The difference of the two numbers is 2. Find the numbers? 

1396 0

  • 1
    2 and 4
    Correct
    Wrong
  • 2
    6 and 4
    Correct
    Wrong
  • 3
    8 and 6
    Correct
    Wrong
  • 4
    8 and 10
    Correct
    Wrong
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Answer : 2. "6 and 4"

Q:

The LCM of two numbers is 12 times their HCF. The sum of the HCF and the LCM is 403. If one of the number is 93, then the other number is. 

1391 0

  • 1
    124
    Correct
    Wrong
  • 2
    128
    Correct
    Wrong
  • 3
    134
    Correct
    Wrong
  • 4
    138
    Correct
    Wrong
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Answer : 1. "124 "

Q:

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

1362 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 smallest number, which when increased by 5 is divisible by each of 24, 32, 36 and 54, is 

1346 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:

Two numbers are in the ratio 3: 4. If their LCM is 240, the E smaller of the two numbers is: 

1323 1

  • 1
    100
    Correct
    Wrong
  • 2
    80
    Correct
    Wrong
  • 3
    60
    Correct
    Wrong
  • 4
    50
    Correct
    Wrong
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Answer : 3. "60 "

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-

1297 0

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

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