CAT Practice Question and Answer

Q: Crack the code? 1223 0

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Answer :
Explanation :

STARTLING is a required 9 letter English word is still a word each time you remove a letter from the word. And how it is shown below:    1. Remove the L, and the word becomes: STARTING 2. Remove one T, and the word becomes: STARING 3. Remove the A, and the word becomes: STRING 4. Remove the R, and the word becomes: STING 5. Remove the other T, and the word becomes: SING 6. Remove the G, and the word becomes: SIN 7. Remove the S, and the word becomes: IN 8. Remove the N, and the word becomes: I

Q: Which formula represents a nonpolar molecule? 1370 0

  • 1
    H2O
    Correct
    Wrong
  • 2
    CF4
    Correct
    Wrong
  • 3
    HCl
    Correct
    Wrong
  • 4
    H2S
    Correct
    Wrong
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Answer : 2. "CF4"
Explanation :

Answer: B) CF4 Explanation: You have to consider three things. 1. First, are the bonds polar? Look at differences in electronegativity and if  it is >0.5, bonds are polar.   2. Second, does the molecule have unshared electron pairs? If so, they generally lead to a polar molecule.   3. Third, is the molecule symmetric? If so, then although the bonds may be polar, the symmetry cancels out the individual bond polarity and the molecule is non polar. CF4 follows all the rules above and has a symmetric distribution of charge, making it nonpolar. The others all have asymmetric charge distributions.   Hence, CF4 represents a Non-polar molecule.

Q: What is the term used in tennis when the score is 40-40? 2378 0

  • 1
    Ace
    Correct
    Wrong
  • 2
    Led
    Correct
    Wrong
  • 3
    Deuce
    Correct
    Wrong
  • 4
    Tie
    Correct
    Wrong
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Answer : 3. "Deuce"
Explanation :

Answer: C) Deuce Explanation: When both sides have won the same number of points then: when each side has won one, or two, points, the score is described as "15-all" and "30-all" (or "15-up" and "30-up"), respectively. However, if each player has won three points, the score is called as "deuce", not "40–all". From that point on in the game, whenever the score is tied, it is described as "deuce", regardless of how many points have been played.

Q: Wilhelm I was declared kaiser of Germany in 1296 0

  • 1
    1797
    Correct
    Wrong
  • 2
    1841
    Correct
    Wrong
  • 3
    1871
    Correct
    Wrong
  • 4
    1914
    Correct
    Wrong
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Answer : 3. "1871"
Explanation :

Answer: C) 1871 Explanation: In Germany, Kaiser means 'Emperor'. On 18th January, 1871 Wilhelm I was declared as Kaiser of Germany.

Q: When is genetic drift a major factor in evolution? 3779 0

  • 1
    When there is male competition
    Correct
    Wrong
  • 2
    When there is artificial selection
    Correct
    Wrong
  • 3
    When there is no selective pressure
    Correct
    Wrong
  • 4
    When there is disruptiveselection
    Correct
    Wrong
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Answer : 3. "When there is no selective pressure"
Explanation :

Answer: C) When there is no selective pressure Explanation: Genetic drift or allelic drift is the change in the relative frequency in which a gene variant (allele) occurs in a population due to random sampling and chance.   When is genetic drift a major factor in evolution is * When there is low gene flow. * When there is no selective pressure. * When there is a bottleneck.

Q: What kind of mathematics do scientists use to analyze data? 1676 0

  • 1
    Algebra
    Correct
    Wrong
  • 2
    Calculus
    Correct
    Wrong
  • 3
    Geometry
    Correct
    Wrong
  • 4
    Statistics
    Correct
    Wrong
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Answer : 4. "Statistics"
Explanation :

Answer: D) Statistics Explanation: Statistics is a branch of mathematics dealing with the collection, analysis, interpretation, presentation, and organization of data.   All scientists uses Statistics for analysing data.

Q: Rs. 69 were divided among 115 family members so that each lady gets 50 paise less than each gentleman, and each gentleman received twice the paise as each lady received. Find the number of  gentlemen in the family? 2363 0

  • 1
    23
    Correct
    Wrong
  • 2
    92
    Correct
    Wrong
  • 3
    48
    Correct
    Wrong
  • 4
    52
    Correct
    Wrong
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Answer : 1. "23"
Explanation :

Answer: A) 23 Explanation: Total number of female members = 115 Let the number of males = x Number of females = y => x + y = 115  ......(1) According to the given data, x + y(0.50) = 69 ......(2) From (1) & (2), we get 0.5y = 46 => y = 46 x 2 = 92 => x = 115 - 92 = 23   Hence, required number of gentlemen in the family = x = 23.

Q: What was part of the agenda of southern democrats? 2355 0

  • 1
    Using fear for political gain
    Correct
    Wrong
  • 2
    Cutting taxes for landowners
    Correct
    Wrong
  • 3
    Using violence for political gain
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation: Southern Democrats are members of the U.S. Democratic Party who reside in the South. All the above given were the part of agenda of southern democrats.   Using fear and violence for political gain is the part of the agenda of southern democrats most directly affected African American.

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