Number System Questions Practice Question and Answer

Q:

यदि $$x+{16\over x}=8$$, तो $$x^2+{32\over x^2}$$ का मान है:

895 0

  • 1
    20
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    18
    Correct
    Wrong
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Answer : 4. "18"

Q:

2 संख्याओं का गुणनफल 1575 है और उनका भागफल 9/7 है। तो संख्याओं का योग है -

892 0

  • 1
    74
    Correct
    Wrong
  • 2
    78
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    90
    Correct
    Wrong
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Answer : 3. "80"
Explanation :

Let the numbers be x and y .

We know   xy = 1575

And  x/y = 9/7

We know   xy/x/y = 1575/9/7

We know    y2  = 1225

We know  y = 35 and x = 45

We know   The sum of the numbers = 45+35

= 80

Q:

निम्नलिखित में से किस विकल्प का मान सबसे बड़ा है?

869 0

  • 1
    (−99)+(−44)−12
    Correct
    Wrong
  • 2
    20+4+(−8)−2+3+6
    Correct
    Wrong
  • 3
    (−18)−45+(−3−2)
    Correct
    Wrong
  • 4
    (−22)+(−4−7)
    Correct
    Wrong
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Answer : 2. "20+4+(−8)−2+3+6"

Q:

एक भाजक भागफल का 15 गुना और शेषफल का 3 गुना होता है। यदि शेषफल 40 है तो लाभांश ज्ञात कीजिए।

865 0

  • 1
    900
    Correct
    Wrong
  • 2
    750
    Correct
    Wrong
  • 3
    1000
    Correct
    Wrong
  • 4
    600
    Correct
    Wrong
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Answer : 3. "1000"

Q:

किसी संख्या और संख्या के वर्गमूल के बीच का अंतर 2 है। वह संख्या _____ होगी। 

852 0

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

Q:

(49)15 – 1 पूर्णतः विभाज्य है:

846 0

  • 1
    29
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    51
    Correct
    Wrong
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Answer : 2. "8"
Explanation :

Q:

एक समानुपात में, पहला, दूसरा और चौथा पद क्रमशः 51, 68 और 108 हैं। तीसरा पद है?

839 0

  • 1
    82
    Correct
    Wrong
  • 2
    81
    Correct
    Wrong
  • 3
    83
    Correct
    Wrong
  • 4
    84
    Correct
    Wrong
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Answer : 2. "81"

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