Simplification Practice Question and Answer

Q:

$$3\sqrt{ {72.9\over0.4096}}$$ is equal to : 

1206 0

  • 1
    0.5625
    Correct
    Wrong
  • 2
    5.625
    Correct
    Wrong
  • 3
    182
    Correct
    Wrong
  • 4
    13.6
    Correct
    Wrong
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Answer : 2. "5.625"

Q:

What is the value of x $$ {0.081\over x}={0.09\over10}$$ ?

1204 0

  • 1
    0.9
    Correct
    Wrong
  • 2
    0.09
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    0.0009
    Correct
    Wrong
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Answer : 3. "9"

Q:

The value of $${\sqrt{40+\sqrt{9\sqrt{81}}} }$$ is

1196 0

  • 1
    $$ \sqrt { 111} \ $$
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    11
    Correct
    Wrong
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Answer : 3. "7"

Q:

If 12x – 15 y =9x + 5y, the value of $$ {x^{2}+{y^{2}}\over{x^{2}-y^{2}}}$$ is

1194 0

  • 1
    $$ {23\over 17}$$
    Correct
    Wrong
  • 2
    $$ {391\over 409}$$
    Correct
    Wrong
  • 3
    $$ {400\over 9}$$
    Correct
    Wrong
  • 4
    $$ {409\over 391}$$
    Correct
    Wrong
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Answer : 4. "$$ {409\over 391}$$"

Q:

The simplified value of
$${{1\over 3}÷{1\over 3}×{1\over 3}\over{1\over 3}÷{1\over 3}of{1\over 3}}-{1\over 9}$$

1176 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    1/3
    Correct
    Wrong
  • 4
    1/9
    Correct
    Wrong
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Answer : 1. "0"

Q:

What is the value of X ?, if 7580 - X = 3440

1176 0

  • 1
    4150
    Correct
    Wrong
  • 2
    5140
    Correct
    Wrong
  • 3
    4130
    Correct
    Wrong
  • 4
    4140
    Correct
    Wrong
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Answer : 4. "4140"

Q:

If 3x + 7y=75, 5x- 5y= 25, then the value of (x +y)=?

1173 1

  • 1
    17
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    18
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 2. "16"

Q:

1169 0

  • 1
    8
    Correct
    Wrong
  • 2
    –2
    Correct
    Wrong
  • 3
    –6
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 3. "–6"

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