Practice Question and Answer

Q: When is 99 more than 100? 1690 0

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Answer :
Explanation :

A microwave. Generally when you run a microwave for '99' it runs for 1 minute and 39 seconds. '100' runs for 1 minute.

Q:

What is the capacity of a computer?

1690 0

  • 1
    low
    Correct
    Wrong
  • 2
    high
    Correct
    Wrong
  • 3
    limited
    Correct
    Wrong
  • 4
    unlimited
    Correct
    Wrong
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Answer : 3. "limited"

Q:

When was the Planning Commission created?

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  • 1
    1945
    Correct
    Wrong
  • 2
    1950
    Correct
    Wrong
  • 3
    1947
    Correct
    Wrong
  • 4
    1960
    Correct
    Wrong
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Answer : 2. "1950"

Q:

Former Sudan Prime Minister passed away, what is his name?

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  • 1
    Ronit Roy
    Correct
    Wrong
  • 2
    Salman Khan
    Correct
    Wrong
  • 3
    Sadiq-al-Mahdi
    Correct
    Wrong
  • 4
    Which bind
    Correct
    Wrong
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Answer : 3. "Sadiq-al-Mahdi"

Q:

When was the book 'Swachh Bharat Kranti' based on Swachh Bharat Mission released?

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  • 1
    5 August 2020
    Correct
    Wrong
  • 2
    31 July 2020
    Correct
    Wrong
  • 3
    3 August 2020
    Correct
    Wrong
  • 4
    1 August 2020
    Correct
    Wrong
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Answer : 1. "5 August 2020"

Q:

A man wanted to sell an article with 20% profit: but he actually sold at 20% loss for Rs. 480, At what price he wanted to sell it to earn the profit? 

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  • 1
    Rs.720
    Correct
    Wrong
  • 2
    Rs.840
    Correct
    Wrong
  • 3
    Rs.600
    Correct
    Wrong
  • 4
    Rs . 750
    Correct
    Wrong
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Answer : 1. "Rs.720 "

Q: In the following pieces of code, B and D will compile without any error. True or false ? A: StringBuffer sb1 = "abcd"; B: Boolean b = new Boolean("abcd"); C: byte b = 255; D: int x = 0x1234; E: float fl = 1.2; 1690 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE Answer & Explanation Answer:
    Correct
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Answer : 1. "TRUE"
Explanation :

Answer: A) TRUE Explanation: The code segments B and D will compile without any error. A is not a valid way to construct a StringBuffer, you need to create a StringBuffer object using "new". B is a valid construction of a Boolean (any string other than "true" or "false" to the Boolean constructor will result in a Boolean with a value of "false"). C will fail to compile because the valid range for a byte is -128 to +127 (i.e., 8 bits, signed). D is correct, 0x1234 is the hexadecimal representation in java. E fails to compile because the compiler interprets 1.2 as a double being assigned to a float (down-casting), which is not valid. You either need an explicit cast, as in "(float)1.2" or "1.2f", to indicate a float.

Q:

The average weight of three men A, Band C is 84 kg. D joins them and the average weight of the four becomes 80 kg. If E whose weight is 3 kg more than that of D, replaces A, the average weight of B, C, D and E becomes 79 kg. The weight of A is: 

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  • 1
    65 kg .
    Correct
    Wrong
  • 2
    70 kg .
    Correct
    Wrong
  • 3
    75 kg.
    Correct
    Wrong
  • 4
    80kg .
    Correct
    Wrong
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Answer : 3. "75 kg. "

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