Aptitude Practice Question and Answer

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Answer : 1. "45 and 76 "

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:

1778 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 three different numbers is 120. Which of the following cannot be their HCF? 

1004 0

  • 1
    24
    Correct
    Wrong
  • 2
    35
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 2. "35 "

Q:

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

1025 0

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

Q:

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

1086 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 least number to be subtracted from 36798 to get a number which is exactly divisible by 78 is 

2646 0

  • 1
    38
    Correct
    Wrong
  • 2
    68
    Correct
    Wrong
  • 3
    18
    Correct
    Wrong
  • 4
    60
    Correct
    Wrong
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Answer : 4. "60 "

Q:

The LCM of two multiples of 12 is 1056. If one of the numbers is 132, the other number is 

1887 0

  • 1
    96
    Correct
    Wrong
  • 2
    132
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    72
    Correct
    Wrong
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Answer : 1. "96 "

Q:

When a number is divided by 15, 20 or 35, each time the remainder is 8. Then the smallest number is 

1279 0

  • 1
    328
    Correct
    Wrong
  • 2
    338
    Correct
    Wrong
  • 3
    428
    Correct
    Wrong
  • 4
    427
    Correct
    Wrong
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Answer : 3. "428 "

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