Aptitude Practice Question and Answer

Q:

If $$p×q=p+q+{p\over q}$$, the value of 8 × 2  is : 

729 0

  • 1
    14
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    10
    Correct
    Wrong
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Answer : 1. "14 "

Q:

If a ≠ b, then which of the following statement is true ?

630 0

  • 1
    $${a+b\over 2}= \sqrt{ab} $$
    Correct
    Wrong
  • 2
    $${a+b\over 2}> \sqrt{ab} $$
    Correct
    Wrong
  • 3
    $${a+b\over 2}< \sqrt{ab} $$
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 2. "$${a+b\over 2}> \sqrt{ab} $$"

Q:

If  $$n+{2\over 3}n+{1\over2}n+{1\over7}n=97$$ then the value of n is : 

563 0

  • 1
    44
    Correct
    Wrong
  • 2
    46
    Correct
    Wrong
  • 3
    40
    Correct
    Wrong
  • 4
    42
    Correct
    Wrong
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Answer : 4. "42 "

Q:

If 5√x + 12√x = 13√x, then x is equal to: 

783 0

  • 1
    9
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    $${25\over4}$$
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 4. "4"

Q:

 If $${\sqrt{7-2}\over\sqrt{7+2}}=a\sqrt{7}+b$$, then the value of a is : 

653 0

  • 1
    $${4\over3}$$
    Correct
    Wrong
  • 2
    $${-4√7\over3}$$
    Correct
    Wrong
  • 3
    $${11\over2}$$
    Correct
    Wrong
  • 4
    $$-{4\over3}$$
    Correct
    Wrong
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Answer : 4. " $$-{4\over3}$$"

Q:

If x is real then the minimum value of (x2-x-1) is :

710 0

  • 1
    1
    Correct
    Wrong
  • 2
    $$-{5\over 4}$$
    Correct
    Wrong
  • 3
    $$3\over 4 $$
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 2. " $$-{5\over 4}$$"

Q:

If a2x+2=1, where a is a positive real number other than 1, then x is equal to 

728 0

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

Q:

If x, y are two positive real number and  $$x^{1/3}=y^{1/4}$$, then which of the following relations is true?

941 0

  • 1
    $$x=y^3$$
    Correct
    Wrong
  • 2
    $$x^{20}=y^{15}$$
    Correct
    Wrong
  • 3
    $$x^3=y^4$$
    Correct
    Wrong
  • 4
    $$x^3=y$$
    Correct
    Wrong
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Answer : 2. " $$x^{20}=y^{15}$$"

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