GATE Practice Question and Answer

Q: The length of a class room floor exceeds its breadth by 25 m. The area of the floor remains unchanged when the length is decreased by 10 m but the breadth is increased by 8 m. The area of the floor is 1704 0

  • 1
    5100 sq.m
    Correct
    Wrong
  • 2
    4870 sq.m
    Correct
    Wrong
  • 3
    4987 sq.m
    Correct
    Wrong
  • 4
    4442 sq.m
    Correct
    Wrong
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Answer : 1. "5100 sq.m"
Explanation :

Answer: A) 5100 sq.m Explanation: Let the breadth of floor be 'b' m. Then, length of the floor is 'l = (b + 25)' Area of the rectangular floor = l x b = (b + 25) × b According to the question, (b + 15) (b + 8) = (b + 25) × b b2 + 8b + 15b + 120 = b2 + 25b 2b = 120 b = 60 m. l = b + 25 = 60 + 25 = 85 m.   Area of the floor = 85 × 60 = 5100 sq.m.

Q: What are the Multiples of 4? 1701 0

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Answer :
Explanation :

The Multiples of 4 are 4, 8, 12, 16, 20, 24, 28, 32, 36, 40 upto 40. Mutiples of 4 means which can be divided by 4 leaving remainder '0'. Common Multiples of 4 & 6 are 12, 24, 36, 48, 60 upto 60.

Q: Two numbers are 35% and 42% are less than a third number .How much percent is the second number less than the first ? 1700 0

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    10.769 %
    Correct
    Wrong
  • 2
    11.23 %
    Correct
    Wrong
  • 3
    10.4 %
    Correct
    Wrong
  • 4
    9.87 %
    Correct
    Wrong
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Answer : 1. "10.769 %"
Explanation :

Answer: A) 10.769 % Explanation: I      II     III 65   58   100 65 -------- 7100 ------ ?  => 10.769%

Q: If every seconds Saturday and all Sundays are holidays in a 30 days month beginning on Saturday, then how many working days are there in that month ? (Month starts from Saturday) 1700 0

  • 1
    25
    Correct
    Wrong
  • 2
    22
    Correct
    Wrong
  • 3
    24
    Correct
    Wrong
  • 4
    23
    Correct
    Wrong
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Answer : 4. "23"
Explanation :

Answer: D) 23 Explanation: As month begins on Saturday, so 2nd, 9th, 16th, 23rd, 30th days will be Sundays. While 8th and 22nd days are second Saturdays. Thus, there are 7 holidays in all. Hence, no. of working days = 30 – 7 =23

Q: Kudos means 1700 0

  • 1
    blame
    Correct
    Wrong
  • 2
    shame
    Correct
    Wrong
  • 3
    fame
    Correct
    Wrong
  • 4
    angry
    Correct
    Wrong
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Answer : 3. "fame"
Explanation :

Answer: C) fame Explanation: Kudos means Praise or Congrats or Compliments. Fame is Synonym of Kudos. Blame, Shame and Angry are Antonyms of Kudos.

Q: What happens during the process of translation? 1699 0

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    Transfer RNA is made from messenger RNA
    Correct
    Wrong
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    Copies of DNA molecules are made
    Correct
    Wrong
  • 3
    The cell uses information from messenger RNA to produce proteins
    Correct
    Wrong
  • 4
    Messenger RNA is made from DNA
    Correct
    Wrong
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Answer : 3. "The cell uses information from messenger RNA to produce proteins"
Explanation :

Answer: C) The cell uses information from messenger RNA to produce proteins Explanation: Translation is the process by which a protein is synthesized from the information contained in a molecule of messenger RNA (mRNA). During translation, an mRNA sequence is read using the genetic code, which is a set of rules that defines how an mRNA sequence is to be translated into the 20-letter code of amino acids, which are the building blocks of proteins.   In short, during the process of translation source language text is conveyed to destination language.

Q: What is the distance around a circle called 1698 0

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Answer :
Explanation :

The distance around a circle is called as Circumference. And that in the case of square or rectangle it is called as Perimeter.

Q: Sriram was conducting an experiment in which the average of 11 observations came to be 92, while the average of first five observations was 89, and that of the last five was 86. What was the measure of the 6th observation ? 1697 0

  • 1
    134
    Correct
    Wrong
  • 2
    137
    Correct
    Wrong
  • 3
    139
    Correct
    Wrong
  • 4
    141
    Correct
    Wrong
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Answer : 2. "137"
Explanation :

Answer: B) 137 Explanation: This can be done as,   (11 × 92)  -  (5 × 89)  -  (5 × 86)    = 1012- 445 - 430 = 137

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