HCF and LCM Aptitude Questions Practice Question and Answer

Q:

The sum of two numbers is 232 and their HCF is 29. What is the numbers of such pairs of numbers satisfied the above condition?

1371 0

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

1040 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:

What is the minimum number of square marbles required to tile a floor of length 5 meters 78 cm. and width 3 meters 74 cm?  

1355 0

  • 1
    540
    Correct
    Wrong
  • 2
    748
    Correct
    Wrong
  • 3
    176
    Correct
    Wrong
  • 4
    187
    Correct
    Wrong
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Answer : 4. "187 "

Q:

Find the LCM of x and (x+3).

665 0

  • 1
    x(x+3)
    Correct
    Wrong
  • 2
    x2(x+3)
    Correct
    Wrong
  • 3
    (x+3)
    Correct
    Wrong
  • 4
    x
    Correct
    Wrong
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Answer : 1. "x(x+3)"

Q:

What is the L.C.M of 12, 36, 6 and 9?

663 0

  • 1
    36
    Correct
    Wrong
  • 2
    144
    Correct
    Wrong
  • 3
    108
    Correct
    Wrong
  • 4
    62
    Correct
    Wrong
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Answer : 1. "36"

Q:

The product of two numbers is 2028 and their HCF is 13. The number of such pair is-

847 0

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

Q:

The HCF of 156, 312 and 195 is :

1537 0

  • 1
    39
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    78
    Correct
    Wrong
  • 4
    13
    Correct
    Wrong
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Answer : 1. "39"

Q:

The HCF of two numbers is 4 and the two other factors of LCM are 5 and 7. Find the smaller of the two numbers.

725 0

  • 1
    10
    Correct
    Wrong
  • 2
    14
    Correct
    Wrong
  • 3
    20
    Correct
    Wrong
  • 4
    28
    Correct
    Wrong
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Answer : 3. "20"

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