CAT Practice Question and Answer

Q: There are 5 consecutive odd numbers. If the difference between square of the average of first two odd number and the of the average last two odd numbers is 396, what is the smallest odd number? 1754 0

  • 1
    29
    Correct
    Wrong
  • 2
    27
    Correct
    Wrong
  • 3
    31
    Correct
    Wrong
  • 4
    33
    Correct
    Wrong
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Answer : 1. "29"
Explanation :

Answer: A) 29 Explanation: Let the five consecutive odd numbers be x-4, x-2, x, x+2, x+4 According to the question, Difference between square of the average of first two odd number and the of the average last two odd numbers is 396 i.e, x+3 and x-3 ⇒x + 32 - x - 32 = 396⇒ x2 + 9 + 6x - x2 + 6x - 9 = 396⇒ 12x = 396⇒ x = 33   Hence, the smallest odd number is 33 - 4 = 29.

Q: Telengana creation as in independent state is primarily the outcome of _____ ? 1754 0

  • 1
    16th Lok Sabha
    Correct
    Wrong
  • 2
    15th Lok Sabha
    Correct
    Wrong
  • 3
    14th Lok Sabha
    Correct
    Wrong
  • 4
    13 Lok Sabha
    Correct
    Wrong
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Answer : 2. "15th Lok Sabha"
Explanation :

Answer: B) 15th Lok Sabha Explanation:

Q: With similar triangles the corresponding angles are equal. 1753 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE Answer & Explanation Answer:
    Correct
    Wrong
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Answer : 1. "TRUE"
Explanation :

Answer: A) TRUE Explanation: The given statement about similar triangles is TRUE.   Similar Triangles Theorem :: Similar triangles are two triangles with corresponding angles of equal measure, and the ratios of their corresponding sides' lengths are equal.

Q: Is Nitrogen an Inert gas? 1751 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE
    Correct
    Wrong
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Answer : 2. "FALSE"
Explanation :

Answer: B) FALSE Explanation: Nitrogen is found as a diatomic molecule (N2) in nature. There is a triple bond between the two nitrogen atoms.   The triple bond is pretty strong. Therefore, it needs a lot of energy to break those bonds and participate in a reaction. So nitrogen is commonly referred to as and used as an inert gas (high abundance & low cost.) However, it’s not truly inert like most noble gases. Nitrogen does react if the conditions are met. But those conditions are not exactly mild, but are not as extreme as for noble gases.   It forms nitric oxide and nitrogen dioxide with oxygen, ammonia with hydrogen, and nitrogen sulfide with sulfur.

Q: Find the next number in the given number series? 11, 5.5, 10, 6.5, 9, ? 1751 0

  • 1
    6.5
    Correct
    Wrong
  • 2
    7.5
    Correct
    Wrong
  • 3
    8.5
    Correct
    Wrong
  • 4
    10.5
    Correct
    Wrong
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Answer : 2. "7.5"
Explanation :

Answer: B) 7.5 Explanation: The given number series follows a pattern that 11 11 - 5.5 = 5.5 5.5 + 4.5 = 10 10 - 3.5 = 6.5 6.5 + 2.5 = 9 9 - 1.5 = 7.5   Hence, the next number in the given number series is 7.5.

Q: At what temperature do the Fahrenheit and celcius scales give the same reading? 1750 0

  • 1
    212 degrees
    Correct
    Wrong
  • 2
    32 degreees
    Correct
    Wrong
  • 3
    -40 degreees
    Correct
    Wrong
  • 4
    0 degreees
    Correct
    Wrong
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Answer : 3. "-40 degreees"
Explanation :

Answer: C) -40 degreees Explanation: We want the temperature when F=C. We know that, F = C x 95 + 32 So substituting C For F, we have C = -40o Therefore,  C = -40.  Thus when C = -40, we have C = F

Q: 12 N in a C = 1749 0

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Answer :
Explanation :

12 N in a C means 12 Numbers in a Clock.

Q: Study of fishes is called 1749 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).

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