CAT Practice Question and Answer

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Answer :
Explanation :

The poison was in the ice. When the girl drank the iced tea, the ice was still fully frozen. Gradually, as the ice cubes melted the poison was released into the drink.   Hence, the girl who died, drunk the tea after the ice melted. So, she was died.

Q: An alloy contains gold and silver in the ratio 5 : 8 and another alloy contains gold and silver in the ratio 5 : 3. If equal amount of both the alloys are melted together, then the ratio of gold and silver in the resulting alloy is ? 2734 0

  • 1
    113/108
    Correct
    Wrong
  • 2
    105/103
    Correct
    Wrong
  • 3
    108/115
    Correct
    Wrong
  • 4
    103/113
    Correct
    Wrong
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Answer : 2. "105/103"
Explanation :

Answer: B) 105/103 Explanation: As given equal amounts of alloys are melted, let it be 1 kg. Required ratio of gold and silver = 513 + 58813 + 38 = 105103.   Hence, ratio of gold and silver in the resulting alloy = 105/103.

Q: Which ministry has started the exercise to revise base year to 2017 - 2018 for computation of wholesale inflation? 1277 0

  • 1
    Ministry of Commerce and Industry
    Correct
    Wrong
  • 2
    Ministry of Finance
    Correct
    Wrong
  • 3
    Ministry of Corporate Affairs
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 1. "Ministry of Commerce and Industry"
Explanation :

Answer: A) Ministry of Commerce and Industry Explanation: The India's commerce and industry ministry has started the exercise to revise base year to 2017-18 for computation of wholesale inflation with a view to present more realistic picture of the price situation   In May last year, the government revised the base year for WPI-based inflation to 2011-12 to give a better indication of changes in prices of commodities.   The new index, with 2017-18, is expected to have new items, which would provide a more realistic picture of price rise and its impact on people.   Most of the additions could be in the manufactured products category. Currently, the index has a total of 697 items, including primary articles, fuel and power and manufactured products.

Q: Currency of Peru is 1438 0

  • 1
    Chilean Peso
    Correct
    Wrong
  • 2
    Euro
    Correct
    Wrong
  • 3
    Sol
    Correct
    Wrong
  • 4
    Dollar
    Correct
    Wrong
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Answer : 3. "Sol"
Explanation :

Answer: C) Sol Explanation: Peru is a country in South America. Lima is the capital city of Peru. Sol is the currency of Peru.

Q: Which of these is unique to flowering plants? 2198 0

  • 1
    double fertilization
    Correct
    Wrong
  • 2
    an embryo surrounded by nutritive tissue
    Correct
    Wrong
  • 3
    haploid gametophytes
    Correct
    Wrong
  • 4
    pollen production
    Correct
    Wrong
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Answer : 1. "double fertilization"
Explanation :

Answer: A) double fertilization Explanation: In flowering plants one sperm nucleus fertilizes the egg and the other sperm nucleus fuses with two other nuclei found within the ovule, thus forming triploid endosperm.   Hence, double fertilization is unique to flowering plants.

Q: Study of fishes is called 1736 0

  • 1
    Amphiology
    Correct
    Wrong
  • 2
    Phylumology
    Correct
    Wrong
  • 3
    Zoology
    Correct
    Wrong
  • 4
    Ichthyology
    Correct
    Wrong
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Answer : 4. "Ichthyology"
Explanation :

Answer: D) Ichthyology Explanation: Ichthyology is the branch of biology devoted to the study of fish.   It is also known as Fish science which includes bony fishes (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha).

Q: What is the gram formula mass of Li2SO4? 1479 0

  • 1
    101.2487
    Correct
    Wrong
  • 2
    109.9446
    Correct
    Wrong
  • 3
    111.2687
    Correct
    Wrong
  • 4
    106.5871
    Correct
    Wrong
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Answer : 2. "109.9446"
Explanation :

Answer: B) 109.9446 Explanation: The term gram formula mass is synonymous with molecular mass. So, to get this, we must add molar mass of all the elements in this compound.   Given compound is Lithium Sulphate - Li2SO4 Elemental calculation :: Li  -  Lithium   -   6.941    -     2   -   13.88200 %S  -  Sulfur     -    32.065   -    1   -   32.065 %O  -  Oxygen   -   15.9994  -    4   -   63.9976 % Now, total = 12.6264 + 29.1647 + 58.2090 = 109.9446    Hence, the gram formula mass of Li2SO4 = 109.9446.

Q: Name one problem that led to the civil war. 1382 0

  • 1
    Slavery
    Correct
    Wrong
  • 2
    Economic reasons
    Correct
    Wrong
  • 3
    State's Rights
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation:

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