Number system Practice Question and Answer

Q:

The average of six consecutive odd numbers is 26. Find the difference between the largest and the smallest of these numbers.

932 0

  • 1
    8
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    10
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 3. "10"

Q:

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

1124 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:

The average of 21 consecutive natural numbers is 53. What is the value of the smallest of these 21 numbers?

2932 0

  • 1
    42
    Correct
    Wrong
  • 2
    41
    Correct
    Wrong
  • 3
    43
    Correct
    Wrong
  • 4
    44
    Correct
    Wrong
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Answer : 3. "43"

Q:

Twenty-one time of a positive number is less than its square by 100. The value of the positive number is

747 0

  • 1
    25
    Correct
    Wrong
  • 2
    26
    Correct
    Wrong
  • 3
    42
    Correct
    Wrong
  • 4
    41
    Correct
    Wrong
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Answer : 3. "42"

Q:

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

1004 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:

A person gives 1/4  of his property to his daughter, 1/2  to his sons and 1/5 for charity. How much has he given away?

7270 1

  • 1
    1/20
    Correct
    Wrong
  • 2
    19/20
    Correct
    Wrong
  • 3
    1/10
    Correct
    Wrong
  • 4
    9/10
    Correct
    Wrong
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Answer : 2. "19/20"

Q:

1/5 of a number exceeds 1/7 of the same number by 10. The number is:

4361 1

  • 1
    25
    Correct
    Wrong
  • 2
    150
    Correct
    Wrong
  • 3
    175
    Correct
    Wrong
  • 4
    200
    Correct
    Wrong
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Answer : 3. "175"

Q:

A rod of length 85 m is divided into two parts if the first part of the rod is 2/3 of the second part then the larger part (in metres) is.

4727 1

  • 1
    34
    Correct
    Wrong
  • 2
    170/3
    Correct
    Wrong
  • 3
    85
    Correct
    Wrong
  • 4
    51
    Correct
    Wrong
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Answer : 4. "51"

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