Practice Question and Answer

Q: There are 10 Letters and 10 correspondingly 10 different Address. If the letter are put into envelope randomly, then find the Probability that Exactly 9 letters will at the Correct Address ? 2047 0

  • 1
    1/10
    Correct
    Wrong
  • 2
    1/9
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "0"
Explanation :

Answer: D) 0 Explanation: As we know we have 10 letter and 10 different address and one more information given that exactly 9 letter will at the correct address....so the remaining one letter automatically reach to their correct address P(E) = favorable outcomes /total outcomesHere favorable outcomes are '0'.So probability is '0'.

Q: The average of a non-zero number and its square is 11 times the number. The number is ? 2047 0

  • 1
    22
    Correct
    Wrong
  • 2
    21
    Correct
    Wrong
  • 3
    11
    Correct
    Wrong
  • 4
    17
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "22"
Explanation :

Answer: A) 22 Explanation: Let the number be 'x'.       x+x22 = 11x x2= 22x => x = 22.

Q:

Are fan boxes installed in roofs?

2046 0

  • 1
    Casing-keeping wiring
    Correct
    Wrong
  • 2
    in cleat wiring
    Correct
    Wrong
  • 3
    in conduit wiring
    Correct
    Wrong
  • 4
    Wiring
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "in conduit wiring"
Explanation :

Most building codes require ceiling fans to be mounted on special fan-rated boxes made of metal or strong plastic with deep-threaded holes for the mounting screws. The box must be mounted firmly by attaching it directly to a framing member or using a fan-rated brace.

Q: What does 'M' stand for in chemistry? 2046 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

'M' is used as a unit of molarity and stands for mole per litre i.e, number of moles of solute per liter of solution.

Q:

How many cricketer's have been inducted in the International Cricket Council's Hall of Fame?

2046 0

  • 1
    43
    Correct
    Wrong
  • 2
    66
    Correct
    Wrong
  • 3
    72
    Correct
    Wrong
  • 4
    89
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "89"

  • Show AnswerHide Answer
  • Workspace

Answer : 2. "gift"
Explanation :

undefined

Q: Plants synthesis protein from which 2046 0

  • 1
    starch
    Correct
    Wrong
  • 2
    sugar
    Correct
    Wrong
  • 3
    amino acids
    Correct
    Wrong
  • 4
    fatty acids
    Correct
    Wrong
  • 5
    starch
    Correct
    Wrong
  • 6
    sugar
    Correct
    Wrong
  • 7
    amino acids
    Correct
    Wrong
  • 8
    fatty acids
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "amino acids" 7. "amino acids"

Q:

In the given figure AD ‖ BE, and ∠DCE=85° and ∠BDC=30° then find out the value of x?

2045 0

  • 1
    30°
    Correct
    Wrong
  • 2
    35°
    Correct
    Wrong
  • 3
    45°
    Correct
    Wrong
  • 4
    55°
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "35°"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully