Practice Question and Answer

Q:

The average of 19 numbers is 24. If each number is multiplied by 3, what is the new average?

1872 0

  • 1
    27
    Correct
    Wrong
  • 2
    72
    Correct
    Wrong
  • 3
    48
    Correct
    Wrong
  • 4
    96
    Correct
    Wrong
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Answer : 2. "72"

Q: What should come in place of question mark (?) in the following number series? 38, 195, ?, 4905, 24530, 122655 1872 0

  • 1
    980
    Correct
    Wrong
  • 2
    885
    Correct
    Wrong
  • 3
    824
    Correct
    Wrong
  • 4
    1021
    Correct
    Wrong
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Answer : 1. "980"
Explanation :

Answer: A) 980 Explanation: The given series follows the pattern that,   ×5+5,   ×5+5,   ×5+5,   ×5+5,   ×5+5   38 x 5 + 5  = 195   195 x 5 + 5 = 980   980 x 5 + 5 = 4905   4905 x 5 + 5 = 24530   24530 x 5 + 5 = 122655   So the missing number is 980 .

Q:

Identify the segment in the sentence which contains the grammatical error.

The population of Sri Lanka are less than that of India.

1872 0

  • 1
    than that
    Correct
    Wrong
  • 2
    Sri Lanka are
    Correct
    Wrong
  • 3
    of India
    Correct
    Wrong
  • 4
    The population
    Correct
    Wrong
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Answer : 2. "Sri Lanka are"

Q:

Find the average of the following set of numbers.
132, 148, 164, 128, 120, 136

1872 0

  • 1
    138
    Correct
    Wrong
  • 2
    144
    Correct
    Wrong
  • 3
    142
    Correct
    Wrong
  • 4
    136
    Correct
    Wrong
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Answer : 1. "138"

Q:

How is 'Power' interpreted?

1872 0

  • 1
    Work done in energy transfer
    Correct
    Wrong
  • 2
    Working rate or energy transfer rate
    Correct
    Wrong
  • 3
    Work done in a minute
    Correct
    Wrong
  • 4
    Superimposed force
    Correct
    Wrong
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Answer : 2. "Working rate or energy transfer rate"

Q: What is the difference between an Interface and an Abstract class ? 1872 0

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Answer :
Explanation :

1.Main difference is methods of a Java interface are implicitly abstract and cannot have implementations. A Java abstract class can have instance methods that implements a default behavior. 2.Variables declared in a Java interface is by default final. An abstract class may contain non-final variables. 3.Members of a Java interface are public by default. A Java abstract class can have the usual flavors of class members like private, protected, etc.. 4.Java interface should be implemented using keyword “implements”; A Java abstract class should be extended using keyword “extends”. 5.An interface can extend another Java interface only, an abstract class can extend another Java class and implement multiple Java interfaces. 6.A Java class can implement multiple interfaces but it can extend only one abstract class. 7.Interface is absolutely abstract and cannot be instantiated; A Java abstract class also cannot be instantiated, but can be invoked if a main() exists. 8.In comparison with java abstract classes, java interfaces are slow as it requires extra indirection.

Q: Guess the Word in WordPuzzle challenge ? 1872 0

  • 1
    Management
    Correct
    Wrong
  • 2
    Managment
    Correct
    Wrong
  • 3
    Manager
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "Management"
Explanation :

Answer: A) Management Explanation: From the given hints, MANAGEMENT satisfies.

Q: Which state become the second state to accept online applications by launching e-RTI portal  ? 1872 0

  • 1
    Maharashtra
    Correct
    Wrong
  • 2
    Telangana
    Correct
    Wrong
  • 3
    Haryana
    Correct
    Wrong
  • 4
    Delhi
    Correct
    Wrong
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Answer : 4. "Delhi"
Explanation :

Answer: D) Delhi Explanation: 1. Filing an RTI application with the Delhi government is now just a click away. Delhi became the second state to launch e-RTI portal that will enable citizens to file online Right to Information (RTI). Maharashtra is the first state to launch the online RTI platform. 2. The portal launched recently will enable citizens to file RTI and seek information related to 172 departments of the Delhi government including the office of the CM and his ministers. 3. The e-RTI portal, which has been designed by the National Informatics Centre (NIC), includes filling of application, payment of fees and getting replies online.

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