Maths Practice Question and Answer

Q:

यदि 5 अंकों की संख्या 535ab 3, 7 और 11 से विभाज्य है, तो (a2 - b2 + ab) का मान क्या है?

797 0

  • 1
    77
    Correct
    Wrong
  • 2
    89
    Correct
    Wrong
  • 3
    95
    Correct
    Wrong
  • 4
    83
    Correct
    Wrong
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Answer : 3. "95"

Q:

यदि 15x– 26x + 8 = (Ax + B) (Cx + D), जहां A और C धनात्मक पूर्णांक हैं, तो (2A + B – C – 2D) का मान क्या है?

778 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:

मान लीजिए

P = 12xy – 10y2 – 18x2,

Q = 14x2 + 12y2 + 9xy, and

R = 5y2 – x+ xy और

तब (P + Q) – R =

606 0

  • 1
    22xy – 3x2 + 3y2 
    Correct
    Wrong
  • 2
    22xy + 3x2 – 3y
    Correct
    Wrong
  • 3
    20xy – 3x– 3y2
    Correct
    Wrong
  • 4
    20xy – 3x– 3y2
    Correct
    Wrong
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Answer : 4. "20xy – 3x– 3y2"

Q:

यदि a + b + c = 6, a3 + b3+c3-3abc=342, तो ab + bc + ca का मान क्या है?

504 0

  • 1
    5
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    -7
    Correct
    Wrong
  • 4
    -5
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 3. "-7 "

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  • Workspace

Answer : 3. "20"

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