Algebra Question with answer Practice Question and Answer

Q:

If   $$ a={b^2\over b-a} $$  then the value of a3 + b3 is 

345 0

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

Q:

Out of the given responses, one of the factors of (a2 – b2 )3 + (b2 – c2) 3 + (c2 – a2) 3 is

327 0

  • 1
    (a + b) (a – b)
    Correct
    Wrong
  • 2
    (a + b) (a + b)
    Correct
    Wrong
  • 3
    (a – b) (a – b)
    Correct
    Wrong
  • 4
    (b – c) (b – c)
    Correct
    Wrong
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Answer : 1. "(a + b) (a – b) "

Q:

If x = y = 333 and z = 334, then the value of x3 + y+ z3 – 3xyz is

363 0

  • 1
    0
    Correct
    Wrong
  • 2
    667
    Correct
    Wrong
  • 3
    1000
    Correct
    Wrong
  • 4
    2334
    Correct
    Wrong
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Answer : 3. "1000 "

Q:

If a = 34, b = c = 33, then the value of a3 + b3 + c3 – 3abc is

298 0

  • 1
    0
    Correct
    Wrong
  • 2
    111
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    100
    Correct
    Wrong
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Answer : 4. "100"

Q:

If a + b = 1 and a3 + b3 + 3ab = k, then the value of k is

419 0

  • 1
    1
    Correct
    Wrong
  • 2
    3
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    7
    Correct
    Wrong
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Answer : 1. "1 "

Q:

If a + b + c = 6, a2 + b+ c= 14 and a3 + b3 + c= 36, then the value of abc is

370 0

  • 1
    3
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 2. "6 "

Q:

If $${144\over0.144}={14.4\over x}$$, then the value of x is

1459 0

  • 1
    144
    Correct
    Wrong
  • 2
    14.4
    Correct
    Wrong
  • 3
    1.44
    Correct
    Wrong
  • 4
    0.0144
    Correct
    Wrong
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Answer : 4. "0.0144"

Q:

If  $${3-5x\over 2x}+{3-5y\over 2y}+{3-5z\over 2z}=0$$ then the value of  $${2\over x}+{2\over y}+{2\over z}$$ is:

1195 0

  • 1
    20
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    15
    Correct
    Wrong
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Answer : 2. "10"

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