HCF and LCM Aptitude Questions Practice Question and Answer

Q:

A General of an Army wants to create a formation of square from 36562 army men. After arrangement, he found some army men remained unused. 

2045 0

  • 1
    81
    Correct
    Wrong
  • 2
    97
    Correct
    Wrong
  • 3
    36
    Correct
    Wrong
  • 4
    65
    Correct
    Wrong
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Answer : 1. "81"

Q:

Three bells ring simultaneously at 11 a.m. They ring at regular intervals of 20 minutes, 30 minutes, 40 minutes respectively. The time when all the three rings together next is:

2044 0

  • 1
    1.15 p.m.
    Correct
    Wrong
  • 2
    1.30 p.m.
    Correct
    Wrong
  • 3
    2 p.m.
    Correct
    Wrong
  • 4
    1 p.m.
    Correct
    Wrong
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Answer : 4. "1 p.m. "

Q:

The  LCM of two numbers is 45 times their HCF. If one of the numbers is 125 and sum of HCF and LCM is 1150. The other numbers is-

1993 0

  • 1
    225
    Correct
    Wrong
  • 2
    235
    Correct
    Wrong
  • 3
    240
    Correct
    Wrong
  • 4
    250
    Correct
    Wrong
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Answer : 1. "225"

Q:

The maximum number of students among whom 1001 pens and 910 pencils can be distributed in such a way that each student gets same number of pens and same number of pencils, is: 

1971 0

  • 1
    91
    Correct
    Wrong
  • 2
    910
    Correct
    Wrong
  • 3
    1001
    Correct
    Wrong
  • 4
    1911
    Correct
    Wrong
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Answer : 1. "91 "

Q:

A milkman has 75 litres milk in one cane and 45 litres in another. The maximum capacity of container which can measure milk of either container exact number: 

1904 0

  • 1
    15 litres
    Correct
    Wrong
  • 2
    25 litres
    Correct
    Wrong
  • 3
    1 litres
    Correct
    Wrong
  • 4
    5 litres
    Correct
    Wrong
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Answer : 1. "15 litres "

Q:

The HCF of 156, 312 and 195 is :

1899 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 LCM of two positive integers is twice the larger number. The difference of the smaller number and the GCD of the two numbers is 4. The smaller number is: 

1899 0

  • 1
    8
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 1. " 8 "

Q:

The number of pairs of positive integers whose sum is 99 and HCF is 9 is: 

1872 0

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

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