Number system Practice Question and Answer

Q:

 The least number by which 448 is to be divided to make it a perfect cube is

1697 0

  • 1
    6
    Correct
    Wrong
  • 2
    7
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 2. "7"

Q:

The smallest number, which should be added to 756896 so as to obtain a multiple of 11, is :

1374 0

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

Q:

When a number is increased by 28, it becomes 107% of itself. What is the number?

1173 0

  • 1
    336
    Correct
    Wrong
  • 2
    420
    Correct
    Wrong
  • 3
    400
    Correct
    Wrong
  • 4
    252
    Correct
    Wrong
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Answer : 3. "400"

Q:

The smallest 5-digit number divisible by 41 is:

1132 0

  • 1
    10045
    Correct
    Wrong
  • 2
    10041
    Correct
    Wrong
  • 3
    10004
    Correct
    Wrong
  • 4
    41000
    Correct
    Wrong
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Answer : 3. "10004"

Q:

On adding a natural number P to the product of four consecutive natural numbers we get a perfect square number. The minimum value of P is:

1019 0

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

Q:

How many numbers can be completely divided to 240?

1495 0

  • 1
    40
    Correct
    Wrong
  • 2
    20
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 2. "20"

Q:

Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is:

1304 0

  • 1
    4
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
  • 5
    3
    Correct
    Wrong
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Answer : 1. "4"

Q:

The difference between the sum of four consecutive odd numbers and three consecutives even numbers together is 20. Also, the largest even number is 5 more than the largest odd number. What is the sum of the smallest odd number and the smallest even number?

1502 0

  • 1
    77
    Correct
    Wrong
  • 2
    71
    Correct
    Wrong
  • 3
    879
    Correct
    Wrong
  • 4
    83
    Correct
    Wrong
  • 5
    Cannot be determined
    Correct
    Wrong
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Answer : 1. "77"

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