HCF and LCM Aptitude Questions Practice Question and Answer

Q:

Three sets of English, Mathematics and Science books containing  336, 240, 96 books respectively have to be stacked in such a way that all the books are stored subject wise and the height of each stack is the same. Total number of stacks will be: 

1236 0

  • 1
    22
    Correct
    Wrong
  • 2
    48
    Correct
    Wrong
  • 3
    14
    Correct
    Wrong
  • 4
    21
    Correct
    Wrong
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Answer : 3. "14"

Q:

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

1234 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 smallest number, which when increased by 5 is divisible by each of 24, 32, 36 and 54, is 

1209 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 product of the LCM and HCF of two numbers is 24. The difference of the two numbers is 2. Find the numbers? 

1206 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:

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

1206 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 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:

1168 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:

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-

1161 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 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? 

1156 0

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

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