Simplification Practice Question and Answer

Q:

दिए गए दो चिह्नों को आपस में बदलने के बाद, निम्नलिखित व्यंजक का मान क्या होगा?

× और ÷

20 + 5 ÷ 6 × 2 – 5

454 0

  • 1
    30
    Correct
    Wrong
  • 2
    35
    Correct
    Wrong
  • 3
    25
    Correct
    Wrong
  • 4
    40
    Correct
    Wrong
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Answer : 1. "30 "

Q:

यदि x = 222, y = 223 और z = 224 है, तो x3+y3+z3-3xyz का मान ज्ञात कीजिए।

446 0

  • 1
    2007
    Correct
    Wrong
  • 2
    2005
    Correct
    Wrong
  • 3
    2006
    Correct
    Wrong
  • 4
    2004
    Correct
    Wrong
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Answer : 1. "2007 "

Q:

यदि a3 – b3 – c3 – 3abc = 0, तो

441 0

  • 1
    a = b = c
    Correct
    Wrong
  • 2
    a + b + c = 0
    Correct
    Wrong
  • 3
    a + c = b
    Correct
    Wrong
  • 4
    a = b + c
    Correct
    Wrong
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Answer : 4. "a = b + c"

Q:

$$ {4\over 7}×{2{4\over 5}} ÷{2\over 5}=?$$

439 0

  • 1
    $$ {6\over 7}$$
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    $$ {2\over 5}$$
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
  • 5
    इनमें से कोई नहीं
    Correct
    Wrong
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Answer : 4. "4"

Q:

यदि {a\over b} और इसका व्युत्क्रम 1 और a ≠ 0, b ≠ 0 का योग है, तो a3 + b3 का मान है

435 0

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

Q:

यदि $$ {1\over x}+x=4,$$ है तो $${1\over x^2}+x^2$$ ज्ञात कीजिए

434 0

  • 1
    14
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 1. " 14 "

Q:

यदि p – 2q = 4, तो p3 – 8q3 – 24pq – 64 का मान है:

430 0

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

Q:

यदि $${b\over a}=0.7$$ तो $${a-b\over a+b}={11\over34}.$$ का मान ज्ञात कीजिए

426 0

  • 1
    0.2
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    0.5
    Correct
    Wrong
  • 4
    0.3
    Correct
    Wrong
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Answer : 3. "0.5"

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