Aptitude Practice Question and Answer

Q:

Find the conjugate of (1 + i)

1065 0

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

Q:

If p = cosec θ – cot θ and q = (cosec θ + cot θ)-1 then which one of the following is correct?

997 0

  • 1
    p - q = 1
    Correct
    Wrong
  • 2
    p = q
    Correct
    Wrong
  • 3
    p + q = 1
    Correct
    Wrong
  • 4
    p + q = 0
    Correct
    Wrong
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Answer : 2. "p = q "

Q:

What is the value of the expression?

(tan0° tan1° tan2° tan3° tan4° …… tan89°)

906 0

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

Q:

What is the degree of the differential equation $$y=x\left({dy\over dx} \right)^2+ \left({dx\over dy} \right)^2 ? $$

932 0

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

Q:

Find the value of sin (1920°)

967 0

  • 1
    1 / 2
    Correct
    Wrong
  • 2
    1 / √2
    Correct
    Wrong
  • 3
    √3 / 2
    Correct
    Wrong
  • 4
    1 / 3
    Correct
    Wrong
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Answer : 3. "√3 / 2 "

Q:

Find the greatest value of (a + b) such than an 8-digit number 4523a60 b is divisible by 15.

983 0

  • 1
    13
    Correct
    Wrong
  • 2
    15
    Correct
    Wrong
  • 3
    11
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 1. "13 "

Q:

Find the greatest value of k for which the 6-digit number 24312k is divisible by 6.

968 0

  • 1
    6
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 1. "6 "

Q:

If an 8-digit number 1862383A is divisible by 22, find the value of A.

1637 0

  • 1
    6
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    8
    Correct
    Wrong
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Answer : 1. "6"

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