GATE Practice Question and Answer

Q: How can we get 24 as an answer by using 6, 11, 3 and 9? 1173 0

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Answer :
Explanation :

This can be solved in two ways using only 6, 11, 9 and 3 we must get 24. 1. {[(11–6) x 3] + 9} By solving this we get 5 x 3 + 9 = 15 + 9 = 24.   2. [(9–6) x (11–3)] = 3 x 8 = 24.

Q: Library is to Book as Book is to 3983 0

  • 1
    Words
    Correct
    Wrong
  • 2
    Pages
    Correct
    Wrong
  • 3
    Binding
    Correct
    Wrong
  • 4
    Cover
    Correct
    Wrong
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Answer : 2. "Pages"
Explanation :

Answer: B) Pages Explanation: A Library consists of Books in the same way Book consists Pages.   Hence, Library : Book :: Book : Pages.

Q: A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red? 1694 0

  • 1
    2/3
    Correct
    Wrong
  • 2
    1/8
    Correct
    Wrong
  • 3
    3/8
    Correct
    Wrong
  • 4
    3/4
    Correct
    Wrong
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Answer : 1. "2/3"
Explanation :

Answer: A) 2/3 Explanation: Given number of balls = 3 + 5 + 7 = 15 One ball is drawn randomly = 15C1 probability that it is either pink or red = 7C1 + 3C115C1 = 7 + 315 = 1015 = 23

Q: What is so delicate that even mentioning it breaks it? 1735 0

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Answer :
Explanation :

Silence is what is so delicate that even mentioning it breaks it.

Q: 1001 A N means 1842 0

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Answer :
Explanation :

1001 A N means 1001 Arabian Nights.   These are same as 12 S of the Z, 64 S on a C, 19 C in CB, 8 S on SS, ...

Q: Which of the following is a Decomposition Reaction? 1731 0

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    2HgO ----> 2Hg + O2
    Correct
    Wrong
  • 2
    6NaNO3 ----> 6NaNO2 + 3O2
    Correct
    Wrong
  • 3
    ZnCO3 ----> ZnO + CO2
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation: All the given reactions are Decomposition reactions. Decomposition reaction is a reaction in which only one reactant is splitted into two or more products.

Q: Lipids are insoluble in water because lipids are 1285 0

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    Hydrophobic
    Correct
    Wrong
  • 2
    Zwitter ions
    Correct
    Wrong
  • 3
    Hydrophylic
    Correct
    Wrong
  • 4
    Neutral
    Correct
    Wrong
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Answer : 1. "Hydrophobic"
Explanation :

Answer: A) Hydrophobic Explanation: Lipids are soluble in solvents of low polarity, which simply means that lipids are soluble in nonpolar solvents. This solubility property is a result of the large nonpolar regions that are indicative of the lipid molecule.

Q: What gets wetter and wetter the more it dries? 2021 0

  • 1
    Soap
    Correct
    Wrong
  • 2
    Towel
    Correct
    Wrong
  • 3
    Clothes
    Correct
    Wrong
  • 4
    Sponge
    Correct
    Wrong
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Answer : 2. "Towel"
Explanation :

Answer: B) Towel Explanation: Towel gets wetter and wetter the more it dries because we use that towel which is dried after used.

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