Number System Questions Practice Question and Answer

Q:

The numerator of a fraction is 4 less than its denominator. If the numerator is decreased by 2 and the denominator is increased by 1, the denominator becomes eight times the numerator. Find the fraction? 

833 0

  • 1
    $${4\over 8} $$
    Correct
    Wrong
  • 2
    $${2\over 7} $$
    Correct
    Wrong
  • 3
    $${3\over 8} $$
    Correct
    Wrong
  • 4
    $${3\over 7} $$
    Correct
    Wrong
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Answer : 4. "$${3\over 7} $$"

Q:

When the integer n is divided by 7, the remainder is 3. What is the remainder if 5n divided by 7?

831 0

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

Q:

The real number to be added to 13851 to get a number that is divisible by 87 is :

829 0

  • 1
    18
    Correct
    Wrong
  • 2
    43
    Correct
    Wrong
  • 3
    54
    Correct
    Wrong
  • 4
    69
    Correct
    Wrong
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Answer : 4. "69"

Q:

The zeros of the cubic polynomial $$ {2x^{3}-x^{2}-2x+1}$$ are a, b and c respectively. Find ab + bc + ca =?

829 0

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

Q:

The sum of three consecutive numbers is 87. The middle number is : 

827 0

  • 1
    30
    Correct
    Wrong
  • 2
    28
    Correct
    Wrong
  • 3
    27
    Correct
    Wrong
  • 4
    29
    Correct
    Wrong
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Answer : 4. "29 "

Q:

What value will come in place of question mark (?) in the questions given below?

663.48 + 22.51 - 292.63 = ? + 300.44 

824 0

  • 1
    98.89
    Correct
    Wrong
  • 2
    95.95
    Correct
    Wrong
  • 3
    96.96
    Correct
    Wrong
  • 4
    92.92
    Correct
    Wrong
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Answer : 4. "92.92 "

Q:

The product of two numbers is 45 and their difference is 4. The sum of squares of the two numbers is

824 0

  • 1
    135
    Correct
    Wrong
  • 2
    240
    Correct
    Wrong
  • 3
    73
    Correct
    Wrong
  • 4
    106
    Correct
    Wrong
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Answer : 4. "106"

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