Practice Question and Answer

Q: The length, breadth and height of a room are in the ratio 7:3:1. If the breadth and height are doubled while the length is halved, then by what percent the total area of the 4 walls of the room will be increased  ? 2158 0

  • 1
    90%
    Correct
    Wrong
  • 2
    88%
    Correct
    Wrong
  • 3
    85%
    Correct
    Wrong
  • 4
    84%
    Correct
    Wrong
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Answer : 1. "90%"
Explanation :

Answer: A) 90% Explanation: Let length, breadth and height of the room be 7, 3, 1 unit respectively. Area of walls = 2(l+b)xh = 2(7+3)x1 = 20 sq. unit. Now, length, breadth and height of room will become 3.5, 6 and 2 respectively.  Area of walls = 2(l+b)xh = 2(3.5+6)x2 = 38 sq. unit.  % Increase in the area of walls = (38-20)x100/20 = 90%.

Q:

Silk Road Gold fund has been set up by-

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  • 1
    USA
    Correct
    Wrong
  • 2
    Russia
    Correct
    Wrong
  • 3
    China
    Correct
    Wrong
  • 4
    India
    Correct
    Wrong
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Answer : 3. "China"
Explanation :

The Chinese government pledged US$40 billion for the creation of the investment fund established on 29 December 2014.


Q:Direction (1-6): Read the passage carefully then answer the questions given below. 

People have long circulated news via word-of-mouth, and as language evolved into writing and literacy – and governments played larger roles in people’s lives – sharing information became a necessity. However, disseminating news and information on paper presented significant challenges. When each copy had to be handwritten, mass distribution was impossible. They were first chiseled in stone or metal; later, they were handwritten and distributed in public forums or read from scrolls by town criers. Though both ancient Romans and Chinese – as well as other ancient civilizations – had early forms of news media, they do not qualify as newspapers because they could not be mass-distributed.
 The first true newspapers arrived after Johannes Gutenberg introduced his movable type printing press to the European world around 1440. Though printing presses with movable type had existed in eastern Asia for around two centuries, they never made it to Europe; furthermore, Gutenberg’s version made it significantly faster to mass produce documents. By 1500, the printing press had made its way throughout Europe, and news sheets (or news books) were mass-distributed.
 The first weekly newspaper was published in Germany by Johann Carolus in 1604. Called Relation aller Fürnemmen und gedenckwürdigen Historien, the publication satisfied the four tenets of a “true” newspaper: Accessibility by the public, Published at a regular interval (daily, weekly, monthly, etc.) ,Information is current ,Covers a variety of topics (politics, events, entertainment, sports, etc.) Despite meeting the requirements for a newspaper, there is some debate as to whether The Relation qualifies as the world’s first newspaper since it was printed in quarto, not folio, size. It’s worth noting the World Association of Newspapers considers The Relation the first true newspaper.’
 Other German newspapers followed, and in 1618 the world’s first broadsheet newspaper printed in folio size was published in Amsterdam, called Courante uyt Italien, Duytslandt, &c. The newspaper format soon spread throughout Europe, with newspapers published in Spain, France, and Sweden. The first English newspaper was published in 1665 in Oxford, England. Known as the Oxford Gazette, the newspaper moved to London in 1666 and was renamed the London Gazette. It’s still being published today. Soon after, the newspaper became a staple in all major European countries. It then made its way to the New World. 

Which of the following options is false according to the passage? 

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  • 1
    The concept of newspaper was rejected in Europe earlier.
    Correct
    Wrong
  • 2
    London Gazette is the first newspaper to be published in the multiple languages.
    Correct
    Wrong
  • 3
    The relation was not the first newspaper as it did not meet all the required conditions.
    Correct
    Wrong
  • 4
    Information on paper was only possible after the introduction of press.
    Correct
    Wrong
  • 5
    All are incorrect
    Correct
    Wrong
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Answer : 5. "All are incorrect"

Q: What do you mean by friend function in C++ ? 2158 0

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Answer :
Explanation :

Friends can be either functions or other classes. The class grants friends unlimited access privileges. * The declaration of the function should be preceded by the keyword 'friend'.* The function definition will not use the keyword or the scope operator '::'. Thus, a friend function is an ordinary function or a member of another class.

Q:

In the following question, a sentence has been given in Direct/Indirect speech. Out of the four alternatives suggested, select the one which best expresses the same sentence in Indirect/Direct speech.

He said to the doctor, "How soon will I be able to walk again?"

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  • 1
    He is asking the doctor how soon would I be able to walk again.
    Correct
    Wrong
  • 2
    He asks the doctor how soon will he be able to walk again.
    Correct
    Wrong
  • 3
    He asks the doctor how soon would I be able to walk again.
    Correct
    Wrong
  • 4
    He asked the doctor how soon would he be able to walk again.
    Correct
    Wrong
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Answer : 4. "He asked the doctor how soon would he be able to walk again."

Q: Nitin correctly remembers that Nidhi's birthday is before Friday but after Tuesday. Dheeraj correctly remembers that Nidhi's birthday is after Wednesday but before Saturday. On which of the following days does Nidhi's birthday definitely fall? 2158 0

  • 1
    Monday
    Correct
    Wrong
  • 2
    Tuesday
    Correct
    Wrong
  • 3
    Wednesday
    Correct
    Wrong
  • 4
    Thursday
    Correct
    Wrong
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Answer : 4. "Thursday"
Explanation :

Answer: D) Thursday Explanation: According to Nitin, Nidhi's birthday falls on Wednesday or Thursday    ---------(i) According to Dheeraj , Nidhi's birthday falls on Thursday or Friday      ---------(ii) From (i) and (ii), Nidhi's birthday falls on Thursday.

Q:

Recently, who became the winner of F1 Italian Grand Prix 2020?

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  • 1
    Carlos Sainz
    Correct
    Wrong
  • 2
    Pierre Gasli
    Correct
    Wrong
  • 3
    Lance stroke
    Correct
    Wrong
  • 4
    Lewis Hamilton
    Correct
    Wrong
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Answer : 2. "Pierre Gasli"

Q:

At which airport recently, India's first contactless car parking has been built?

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  • 1
    Kempegowda International Airport
    Correct
    Wrong
  • 2
    Hyderabad International Airport
    Correct
    Wrong
  • 3
    Jaipur International Airport
    Correct
    Wrong
  • 4
    Surat International Airport
    Correct
    Wrong
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Answer : 2. "Hyderabad International Airport"

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