Surds and Indices Practice Question and Answer

Q:

$$ \sqrt{.081×.484\over0.0064×6.25}=?$$

979 0

  • 1
    9
    Correct
    Wrong
  • 2
    0.9
    Correct
    Wrong
  • 3
    0.99
    Correct
    Wrong
  • 4
    99
    Correct
    Wrong
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Answer : 3. "0.99"

Q:

यदि $$ \sqrt{0.04×0.4×a} =0.4×0.04×{\sqrt{b}}$$ है तो $$ {a\over b}$$ का मान होगा।

1178 0

  • 1
    0.016
    Correct
    Wrong
  • 2
    0.16
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    16
    Correct
    Wrong
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Answer : 1. "0.016"

Q:

$$ {4^{10+n}}.{16^{3n-4}}\over4^{7n}$$ का मान होगा—

1153 0

  • 1
    8
    Correct
    Wrong
  • 2
    20
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 3. "16"

Q:

$$ \sqrt{217+\sqrt{48+\sqrt{256}}}=?$$.

1220 0

  • 1
    14
    Correct
    Wrong
  • 2
    15
    Correct
    Wrong
  • 3
    14.4
    Correct
    Wrong
  • 4
    16
    Correct
    Wrong
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Answer : 2. "15"

Q:

यदि $$  3 ^{2x-y}=3^{x+y}=\sqrt{27}$$  है तो  y का मान होगा—

895 0

  • 1
    $$ {1\over2}$$
    Correct
    Wrong
  • 2
    $$ {3\over2}$$
    Correct
    Wrong
  • 3
    $$ {1\over8}$$
    Correct
    Wrong
  • 4
    $$ {3\over4}$$
    Correct
    Wrong
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Answer : 1. "$$ {1\over2}$$"

Q:

यदि $$ {2^{2n-1}}={1\over8^{n-3}}$$, है तो n का मान होगा।

804 0

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

Q:

यदि 3 (X-Y)=27  और 3 (X+Y)=243 है तो  X का मान होगा।

1018 0

  • 1
    0
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 3. "4"

Q:

यदि 5a=3125,  है तो 5(a-3) का मान होगा।

1244 0

  • 1
    25
    Correct
    Wrong
  • 2
    125
    Correct
    Wrong
  • 3
    625
    Correct
    Wrong
  • 4
    1625
    Correct
    Wrong
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Answer : 1. "25"

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