Maths Practice Question and Answer

Q:

संख्या 2918245 निम्नलिखित में से किस संख्या से विभाज्य है?

1028 0

  • 1
    3
    Correct
    Wrong
  • 2
    11
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 2. "11"

Q:

एक कार के अंकित मूल्य पर 12%, 18% और 25% की क्रमिक छूट के लिए एकल समकक्ष छूट ज्ञात कीजिए।

882 0

  • 1
    35.28%
    Correct
    Wrong
  • 2
    42.65%
    Correct
    Wrong
  • 3
    40.25%
    Correct
    Wrong
  • 4
    45.88%
    Correct
    Wrong
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Answer : 4. "45.88%"

Q:

क्षैतिज तल पर किसी इमारत के आधार से 70 मीटर की दूरी पर उसके शीर्ष का उन्नयन कोण 60° पाया जाता है। भवन की ऊँचाई ज्ञात कीजिए।

572 0

  • 1
    $$70 \sqrt { 3} $$m
    Correct
    Wrong
  • 2
    $$60 \sqrt { 3} $$m
    Correct
    Wrong
  • 3
    $$50 \sqrt { 3} $$m
    Correct
    Wrong
  • 4
    $$70 \sqrt { 2} $$m
    Correct
    Wrong
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Answer : 1. "$$70 \sqrt { 3} $$m"

Q:

20 संख्याओं का औसत 32 है। यदि दो संख्याएँ 29 और 31 हैं, तो शेष संख्याओं का औसत (दो दशमलव तक सही) क्या है?

1198 0

  • 1
    31.24
    Correct
    Wrong
  • 2
    30.22
    Correct
    Wrong
  • 3
    34.44
    Correct
    Wrong
  • 4
    32.22
    Correct
    Wrong
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Answer : 4. "32.22"

Q:

निम्नलिखित डेटा का मानक विचलन ज्ञात करें (दो दशमलव स्थानों तक पूर्णांकित)।
5, 3, 4, 7

582 0

  • 1
    1.48
    Correct
    Wrong
  • 2
    3.21
    Correct
    Wrong
  • 3
    4.12
    Correct
    Wrong
  • 4
    2.45
    Correct
    Wrong
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Answer : 1. "1.48 "

Q:

निम्नलिखित विकल्पों में से गलत सूत्र का चयन करें।

512 0

  • 1

    cosec2θ - cot2θ=1

    Correct
    Wrong
  • 2

    sin2θ + cos2θ=1

    Correct
    Wrong
  • 3

    sec2θ + cos2θ=1

    Correct
    Wrong
  • 4

    sec2θ – tan2θ=1

    Correct
    Wrong
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Answer : 3. "

sec2θ + cos2θ=1

"

Q:

x2 − 8x + 15 और x− 5x + 6 का LCM है:

1492 0

  • 1
    (x - 2) (x - 3) (x − 5)
    Correct
    Wrong
  • 2
    (x − 6)2 (x + 1) (x − 3) 
    Correct
    Wrong
  • 3
    (x − 6) (x + 1) (x − 3)
    Correct
    Wrong
  • 4
    (x + 6) (x + 1) (x − 3)
    Correct
    Wrong
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Answer : 1. " (x - 2) (x - 3) (x − 5) "

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