Maths Practice Question and Answer

Q:

$$ { 32^{0.16}×32^{0.04}}$$  का मान है।

1236 0

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

Q:

एक आयत के दो असमान भुजाओं का अनुपात 1 : 2 है यदि इसका परिमाप 24 सेमी है तो विकर्ण की लम्बाई सेमी में क्या होगी ?

1128 0

  • 1
    $$ {2 \over {\sqrt {5}}}$$
    Correct
    Wrong
  • 2
    $$ {4 \over {\sqrt {5}}}$$
    Correct
    Wrong
  • 3
    $$ {2 {\sqrt {5}}}$$
    Correct
    Wrong
  • 4
    $$ {4 {\sqrt {5}}}$$
    Correct
    Wrong
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Answer : 4. "$$ {4 {\sqrt {5}}}$$"

Q:

$$ cos {20^o} cos {40^o}cos {60^o}cos {80^o}$$ का मान है:

1118 0

  • 1
    $$ {1\over 15}$$
    Correct
    Wrong
  • 2
    $$ {1\over 16}$$
    Correct
    Wrong
  • 3
    $$ {1\over 12}$$
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "$$ {1\over 16}$$"

Q:

यदि x – y + z = 15, xyz = -216 और xz – xy – yz = 18 है तो $$ {x^3}-{y^3}+{z^3}=$$ इसका मान होगा

1169 0

  • 1
    2613
    Correct
    Wrong
  • 2
    2813
    Correct
    Wrong
  • 3
    3013
    Correct
    Wrong
  • 4
    3213
    Correct
    Wrong
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Answer : 4. "3213"

Q:

यदि 0.4 m + 0.8 n = 2.2 और 0.8 m + 0.4 n = 1.4, हो, तो $$ {m^2}+{n^2}$$का मान क्‍या हाेगा?

1180 0

  • 1
    8.5
    Correct
    Wrong
  • 2
    6.5
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 2. "6.5"

Q:

यदि $$ {x^2} -4x-1 $$  है तो इसका $$ {{x^6} -{x^4}+{x^2}-1}\over {x^3}$$  मान होगा

997 0

  • 1
    72
    Correct
    Wrong
  • 2
    76
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    84
    Correct
    Wrong
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Answer : 1. "72"

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Answer : 4. "24"

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