Aptitude Practice Question and Answer

Q:

Two vessels A and B contains acid and water in the ratio 4:3 and 5:3 respectively Then the ratio in which these mixtures to be mixed to obtain a new mixture in vessel C containing acid and water in the ratio 3:2 is 

995 0

  • 1
    5:8
    Correct
    Wrong
  • 2
    7:5
    Correct
    Wrong
  • 3
    7:8
    Correct
    Wrong
  • 4
    4:7
    Correct
    Wrong
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Answer : 3. "7:8 "

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Answer : 3. "24% "

Q:

If△ABC ∼ △EDF such that AB = 6 cm, DF = 16 cm and DE = 8 cm, then the length of BC is:

994 0

  • 1
    8 cm
    Correct
    Wrong
  • 2
    10 cm
    Correct
    Wrong
  • 3
    12 cm
    Correct
    Wrong
  • 4
    14 cm
    Correct
    Wrong
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Answer : 3. "12 cm "

Q:

If $${secθ+tanθ\over secθ-tanθ}={5\over 3}$$ then sinθ is equal to ;

993 0

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

Q:

if  $${5x-{5\over x}+6=0}$$, then $$x^2+{1\over x^2}$$ is

993 0

  • 1
    $$86\over11$$
    Correct
    Wrong
  • 2
    $$43\over12$$
    Correct
    Wrong
  • 3
    $$86\over25$$
    Correct
    Wrong
  • 4
    $$81\over10$$
    Correct
    Wrong
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Answer : 3. "$$86\over25$$"

Q:

The product of the zeroes of the quadratic polynomial x2+7x+ 10 is

992 0

  • 1
    12
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    32
    Correct
    Wrong
  • 4
    42
    Correct
    Wrong
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Answer : 2. "10"

Q:

if $$a+{1\over a}=5$$, then what is the value of $$a^3+{1\over a^3}$$

992 0

  • 1
    110
    Correct
    Wrong
  • 2
    15
    Correct
    Wrong
  • 3
    105
    Correct
    Wrong
  • 4
    -10
    Correct
    Wrong
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Answer : 1. "110 "

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Answer : 5. "8%"

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