Number System Questions Practice Question and Answer

Q:

If the number x3339 is divisible by 11, what is the face value of x?

857 0

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

Q:

The east positive integer that should be subtracted from 3011 x 3012 so that the difference is a perfect square is-

848 0

  • 1
    3009
    Correct
    Wrong
  • 2
    3010
    Correct
    Wrong
  • 3
    3011
    Correct
    Wrong
  • 4
    3012
    Correct
    Wrong
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Answer : 3. "3011"
Explanation :

We know that 3011 x 3012

= 3011 (3011 + 1)

= (3011)+ 3011

We know    

Required least number = 3011

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:

847 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:

If the sum of a number and its reciprocal be 2, then the number is-

844 0

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

Q:

If 738 A6A is divisible by 11, then the value of A is-

842 0

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

Q:

Find the difference between mean and median in the given data 2.5, 4.6, 7.2, 3.3, 4.9, 5.6, 2.7?

840 0

  • 1
    0.2
    Correct
    Wrong
  • 2
    0.8
    Correct
    Wrong
  • 3
    1.2
    Correct
    Wrong
  • 4
    2.0
    Correct
    Wrong
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Answer : 1. "0.2"

Q:

The largest natural number which exactly divides the product of any four consecutive natural numbers is

830 0

  • 1
    24
    Correct
    Wrong
  • 2
    120
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 1. "24 "

Q:

Which of the following is the largest fraction    

829 0

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

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