Simplification Practice Question and Answer

Q:

The square root of a positive number less than 100 lies between

1027 0

  • 1
    0 and 1000
    Correct
    Wrong
  • 2
    0 and 10
    Correct
    Wrong
  • 3
    -10 and 10
    Correct
    Wrong
  • 4
    -100 and 100
    Correct
    Wrong
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Answer : 3. "-10 and 10"

Q:

If the square root of 841 is 29, then square root of 0.00000841 is equal to:

680 0

  • 1
    0.029
    Correct
    Wrong
  • 2
    0.0029
    Correct
    Wrong
  • 3
    0.00029
    Correct
    Wrong
  • 4
    0.29
    Correct
    Wrong
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Answer : 2. "0.0029"

Q:

If the average of 11, 23 and x is 40, then what is the value of x?

908 0

  • 1
    6
    Correct
    Wrong
  • 2
    40
    Correct
    Wrong
  • 3
    86
    Correct
    Wrong
  • 4
    120
    Correct
    Wrong
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Answer : 3. "86"

Q:

If m + n = 1, then what will be the value of m³ + n³ + 3mn?

495 0

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

Q:

If a + b + c = 2, a² + b² + c² = 26 then the value of a³ + b³ + c³ – 3abc is

595 0

  • 1
    71
    Correct
    Wrong
  • 2
    74
    Correct
    Wrong
  • 3
    69
    Correct
    Wrong
  • 4
    78
    Correct
    Wrong
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Answer : 2. "74"

Q:

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

1164 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:

Find the value of x:
23 × 34 × 1080 ÷ 15 = 6x

1209 0

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

Q:

Find the conjugate of (1 + i)

675 0

  • 1
    -2 + 2i
    Correct
    Wrong
  • 2
    -2 – 2i
    Correct
    Wrong
  • 3
    1 - i
    Correct
    Wrong
  • 4
    1 – 3i
    Correct
    Wrong
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Answer : 2. "-2 – 2i "

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