Maths Practice Question and Answer

Q:

त्रिभुज की परिवृत्त का क्षेत्रफल (cm² में) क्या है जिसकी भुजाएं क्रमशः 6 सेमी, 8 सेमी और 10 सेमी हैं?

1281 0

  • 1
    2200/7
    Correct
    Wrong
  • 2
    550/7
    Correct
    Wrong
  • 3
    275/7
    Correct
    Wrong
  • 4
    400/7
    Correct
    Wrong
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Answer : 2. "550/7"

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Answer : 4. "2"

Q:

यदि$$ {x+3y-{2z\over 4}}=6$$ , $$ {x+{2\over 3}}(2y+3z)=33$$  तथा $$ {1\over 7}{(x+y+z)+2z=9}$$,  हैं, तो $$ {46x+131y}$$?का मान क्या है?

3826 0

  • 1
    364
    Correct
    Wrong
  • 2
    414
    Correct
    Wrong
  • 3
    384
    Correct
    Wrong
  • 4
    464
    Correct
    Wrong
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Answer : 2. "414"

Q:

यदि $${3x+4y-2z+9=17},{7x+2y+11z+8=23}$$  तथा $$ {5x+9y+6z-4=18}$$ हैं, तो $$ {x+y+z-34}$$ का मान क्या है?

1527 0

  • 1
    -45
    Correct
    Wrong
  • 2
    -31
    Correct
    Wrong
  • 3
    -14
    Correct
    Wrong
  • 4
    -28
    Correct
    Wrong
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Answer : 2. "-31"

Q:

यदि $${a+b=10}$$  तथा $$ \sqrt{a\over b}-13=-\sqrt{b\over a}-11$$,  हैं, तो $${3ab+4a^2+5b^2}$$ का मान क्या है?

1178 0

  • 1
    300
    Correct
    Wrong
  • 2
    600
    Correct
    Wrong
  • 3
    750
    Correct
    Wrong
  • 4
    450
    Correct
    Wrong
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Answer : 1. "300"

Q:

यदि $$ {3\sqrt{{1-a}\over{a}}}+9={19-3\sqrt{{a}\over{1-a}}}$$ है,तो a का मान क्या है?

1326 0

  • 1
    $${3\over10},{7\over10}$$
    Correct
    Wrong
  • 2
    $${1\over10},{9\over10}$$
    Correct
    Wrong
  • 3
    $${2\over5},{3\over5}$$
    Correct
    Wrong
  • 4
    $${1\over5},{4\over5}$$
    Correct
    Wrong
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Answer : 2. "$${1\over10},{9\over10}$$"

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