CAT Practice Question and Answer

Q: What profit percent is made by selling an article at a certain price, if by selling at 2/3rd of that price, there would be a loss of 20%   ? 2392 0

  • 1
    30 %
    Correct
    Wrong
  • 2
    25 %
    Correct
    Wrong
  • 3
    15 %
    Correct
    Wrong
  • 4
    20 %
    Correct
    Wrong
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Answer : 4. "20 %"
Explanation :

Answer: D) 20 % Explanation: SP2 = 2/3 SP1CP = 100SP2 = 802/3 SP1 = 80 SP1 = 120100 --- 20   => 20%

Q: If sum of upstream and downstream speed of a boat is 82 kmph, and the boat travels 105 km. upstream in 3 hr, Find the time taken by boat to cover 126 km downstream. 2391 0

  • 1
    2.8 hrs
    Correct
    Wrong
  • 2
    2.7 hrs
    Correct
    Wrong
  • 3
    2.6 hrs
    Correct
    Wrong
  • 4
    2.5 hrs
    Correct
    Wrong
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Answer : 2. "2.7 hrs"
Explanation :

Answer: B) 2.7 hrs Explanation: Let Speed of boat in still water = b Let Speed of still water = w Then we know that, Speed of Upstream = U = boat - water Speed of Downstream = D = boat + water Given, U + D = 82 b - w + b + w = 82 2b = 82 => b = 41 kmph From the given data, 41 - w = 105/3 = 35 w = 6 kmph Now, b + w = 126/t => 41 + 6 = 126/t => t = 126/47  = 2.68 hrs.

Q: Which of these was an action of Farmers Alliances? 2390 0

  • 1
    Involving farmers in political action
    Correct
    Wrong
  • 2
    Encouraging farmers to give up farming
    Correct
    Wrong
  • 3
    Helping farmers fight for better prices
    Correct
    Wrong
  • 4
    Both A & C
    Correct
    Wrong
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Answer : 4. "Both A & C"
Explanation :

Answer: D) Both A & C Explanation: The Farmers Alliance was an organized agrarian economic movement among American farmers that developed and flourished in 1875.   One of the goals of the organization was to end the adverse effects of the crop-lien system on farmers in the period following the American Civil War.   The Farmer's Alliance moved into politics in the early 1890s under the banner of the People's Party, commonly known as the "Populists."

Q: The term aerotolerant anaerobe refers to an organism that 2390 0

  • 1
    uses oxygen or grows without oxygen.
    Correct
    Wrong
  • 2
    requires more oxygen than is present in air.
    Correct
    Wrong
  • 3
    does not use oxygen but tolerates it.
    Correct
    Wrong
  • 4
    requires less oxygen than is present in air.
    Correct
    Wrong
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Answer : 3. "does not use oxygen but tolerates it."
Explanation :

Answer: C) does not use oxygen but tolerates it. Explanation:

Q: Who was appointed as NASSCOM chairman in April 2017 ? 2389 0

  • 1
    C P. Gurnani
    Correct
    Wrong
  • 2
    Raman Roy
    Correct
    Wrong
  • 3
    Smt. Singha
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 2. "Raman Roy"
Explanation :

Answer: B) Raman Roy Explanation: The National Association of Software and Services Companies (Nasscom) appointed Raman Roy (Managing Director of Quatrro Global Services) as its chairman for 2017-2018.  Rishad Premji (Chief Strategy Officer (CSO), Wipro Limited) has been appointed Vice Chairman. Raman Roy has replaced Mr. CP Gurnani.

Q: 0 divided by 0 2389 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    Undefined
    Correct
    Wrong
  • 4
    Indeterminate
    Correct
    Wrong
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Answer : 4. "Indeterminate"
Explanation :

Answer: D) Indeterminate Explanation: Indeterminate are those,which mathematics can’t determine. Because we don’t actually know which one is the exact answer for this due to having lots of results for this. Explanation:: Let us think by this analogy that, 0 / 1 = 0 0 / 2 = 0 ………… ……….. we can say 0 / n = 0 from this we can write, 0/0 = 0 Again, another analogy,(from limiting concept of 1/0 = infinity) 1 / 0 = +∞ or -∞ 2 /0 = +∞ or -∞ ……… .……. we can say 0 / 0 = ∞ Again, another analogy, 1 / 1 = 1 2/2 = 1 .…….. ……….. we can say, 0/0 = 1 Now, you see it’s confusing. Every analog is mathematically correct then which one is the right answer for 0/0.  Therefore Mathematics can’t determine this fact. So, 0/0 is indeterminate.

Q: Planets do not twinkle because 2389 0

  • 1
    Far distance
    Correct
    Wrong
  • 2
    Total internal reflection
    Correct
    Wrong
  • 3
    Refraction
    Correct
    Wrong
  • 4
    Near distance
    Correct
    Wrong
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Answer : 4. "Near distance"
Explanation :

Answer: D) Near distance Explanation: Stars twinkle because they’re so far away from Earth that when light from the stars passes through the atmosphere, it is bent countless times due to refraction, making it look like as if they were blinking. The sun and other planets doesn’t twinkle because it’s too close to Earth compared to other stars.

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