CAT Practice Question and Answer

Q: There are 11 True or False questions. How many ways can these be answered ? 1724 0

  • 1
    11!/2
    Correct
    Wrong
  • 2
    1024
    Correct
    Wrong
  • 3
    11!
    Correct
    Wrong
  • 4
    2048
    Correct
    Wrong
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Answer : 4. "2048"
Explanation :

Answer: D) 2048 Explanation: Given 11 questions of type True or False   Then, Each of these questions can be answered in 2 ways (True or false)   Therefore, no. of ways of answering 11 questions = 211 = 2048 ways.

Q: ISRO has signed a memorandum of understanding with which of the following company to help develop low-cost lithium-ion batteries for electric vehicles ? 1723 0

  • 1
    SAIL
    Correct
    Wrong
  • 2
    DRDO
    Correct
    Wrong
  • 3
    BHEL
    Correct
    Wrong
  • 4
    GAIL
    Correct
    Wrong
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Answer : 3. "BHEL"
Explanation :

Answer: C) BHEL Explanation: The Indian Space Research Organization (ISRO) has signed a memorandum of understanding with Bharat Heavy Electricals Limited (BHEL) to help develop low-cost lithium-ion batteries for electric vehicles.

Q: Calculate the number of bricks, each measuring 25 cm x 15 cm x 8 cm required to construct a wall of dimensions 10 m x 4 m x 5 m when 10% of its volume is occupied by concrete ? 1723 0

  • 1
    6000
    Correct
    Wrong
  • 2
    5400
    Correct
    Wrong
  • 3
    3800
    Correct
    Wrong
  • 4
    4700
    Correct
    Wrong
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Answer : 1. "6000"
Explanation :

Answer: A) 6000 Explanation: Let 'B' be the nuber of bricks. => 10 x 4/100 x 5 x 90/100 = 25/100 x 15/100 x 8/100 x B => 10 x 20 x 90 = 15 x 2 x B => B = 6000

Q: The difference between the squares of two consecutive odd integers is always divisible by ? 1722 0

  • 1
    8
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    6
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 1. "8"
Explanation :

Answer: A) 8 Explanation: Let the two consecutive odd integers be (2x + 1) and (2x + 3)Then, (2x + 3)2 - (2x + 1)2 = (2x + 3 + 2x + 1) (2x + 3 - 2x - 1) = (4x + 4)(2)= 8 (x + 1), which is always divisible by 8

Q: What organelle allows some protists to detect light? 1721 0

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Answer :
Explanation :

An organelle called Eyespot allows some protists to detect light. It allows the cells to sense light direction and intensity and respond to it by swimming either towards the light (positive phototaxis) or away from the light (negative phototaxis).   Eyespot is a photoreceptive organelle found in the flagellate or (motile) cells of green algae and other unicellular photosynthetic organisms such as euglenids.   Eyespot-mediated light perception helps the cells in finding an environment with optimal light conditions for photosynthesis. Eyespots are the simplest and most common "eyes" found in nature, composed of photoreceptors and areas of bright orange-red pigment granules.

Q: Numismatics is the study of 1720 0

  • 1
    Numbers
    Correct
    Wrong
  • 2
    Coins
    Correct
    Wrong
  • 3
    Stamps
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 2. "Coins"
Explanation :

Answer: B) Coins Explanation: Numismatics is the study or collection of currency, including coins, tokens, paper money, and related objects.

Q: Which of the following team has won the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands? 1720 0

  • 1
    India
    Correct
    Wrong
  • 2
    Australia
    Correct
    Wrong
  • 3
    Brazil
    Correct
    Wrong
  • 4
    The Netherlands
    Correct
    Wrong
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Answer : 2. "Australia"
Explanation :

Answer: B) Australia Explanation: In the summit clash of the 37th and final edition of the Hockey Champions Trophy at Breda, the Netherlands, India lost to defending champions Australia via penalty shoot-off. The match went into the shoot-off after both the teams were locked at 1-1 in regulation time.

Q: 8(6+5) - 10 =? 1719 0

  • 1
    76
    Correct
    Wrong
  • 2
    78
    Correct
    Wrong
  • 3
    80
    Correct
    Wrong
  • 4
    82
    Correct
    Wrong
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Answer : 2. "78"
Explanation :

Answer: B) 78 Explanation: 8(6+5) - 10 = ? ? = 8(11) - 10 ? = 88 - 10 ? = 78.

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