Simplification Practice Question and Answer

Q:

If a3 – b3 – c3 – 3abc = 0, then 

584 0

  • 1
    a = b = c
    Correct
    Wrong
  • 2
    a + b + c = 0
    Correct
    Wrong
  • 3
    a + c = b
    Correct
    Wrong
  • 4
    a = b + c
    Correct
    Wrong
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Answer : 4. "a = b + c"

Q:

If   , then what is the value of k?

579 0

  • 1
    102
    Correct
    Wrong
  • 2
    119
    Correct
    Wrong
  • 3
    136
    Correct
    Wrong
  • 4
    85
    Correct
    Wrong
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Answer : 2. "119"

Q:

If the sum of {a\over b}and its reciprocal is 1 and a ≠ 0, b ≠ 0, then the value of a3 + b3 is

575 0

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

Q:

Simplify the following expression.
12 + 2.5 + (1.5 of 4) - 2.6

568 0

  • 1
    17.9
    Correct
    Wrong
  • 2
    18.9
    Correct
    Wrong
  • 3
    18.1
    Correct
    Wrong
  • 4
    17.1
    Correct
    Wrong
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Answer : 1. "17.9"

Q:

567 0

  • 1
    64
    Correct
    Wrong
  • 2
    60
    Correct
    Wrong
  • 3
    68
    Correct
    Wrong
  • 4
    56
    Correct
    Wrong
  • 5
    72
    Correct
    Wrong
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Answer : 1. "64"

Q:

562 0

  • 1
    20
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    28
    Correct
    Wrong
  • 4
    32
    Correct
    Wrong
  • 5
    22
    Correct
    Wrong
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Answer : 2. "24"

Q:

If 5x + 5 > 2 + 2x and 5x + 3 ≤ 4x + 5; then x can take which of the following values?

561 0

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

Q:

What is the value of y in the following equation?
(1÷23) of [2{3 + 4(35 + 7)}] = y

557 1

  • 1
    2
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    21
    Correct
    Wrong
  • 4
    23
    Correct
    Wrong
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Answer : 1. "2"

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