CAT प्रश्न और उत्तर का अभ्यास करें

प्र: A group of 10 representatives is to be selected out of 12 seniors and 10 juniors. In how many different ways can the group be selected if it should have at least one senior ? 5593 0

  • 1
    ²²C₁₀ + 1
    सही
    गलत
  • 2
    ²²C₉ + ¹⁰C₁
    सही
    गलत
  • 3
    ²²C₁₀
    सही
    गलत
  • 4
    ²²C₁₀ - 1
    सही
    गलत
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उत्तर : 4. "²²C₁₀ - 1"
व्याख्या :

Answer: D) ²²C₁₀ - 1 Explanation: The total number of ways of forming the group of ten representatives is ²²C₁₀. The total number of ways of forming the group that consists of no seniors is ¹⁰C₁₀ = 1 way The required number of ways = ²²C₁₀ - 1

प्र: Which of the following is NOT true about enterprise systems? 5585 0

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    The software is expressly built to allow companies to mimic their unique business practices
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  • 2
    The software includes analytical tools to evaluate overall organization performance
    सही
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  • 3
    They help firms respond rapidly to customer requests for info or products
    सही
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  • 4
    The data have standardized definitions and formats that are accepted by the entire organization
    सही
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उत्तर : 1. "The software is expressly built to allow companies to mimic their unique business practices"
व्याख्या :

Answer: A) The software is expressly built to allow companies to mimic their unique business practices Explanation: Enterprise systems (ES) are large-scale application software packages that support business processes, information flows, reporting, and data analytics in complex organizations.   Here option A) The software is expressly built to allow companies to mimic their unique business practices is not TRUE about enterprise systems.

प्र: Convent : Cloister :: Eyrie : ? 5579 0

  • 1
    Show
    सही
    गलत
  • 2
    Open
    सही
    गलत
  • 3
    Hide
    सही
    गलत
  • 4
    Nest
    सही
    गलत
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उत्तर : 4. "Nest"
व्याख्या :

Answer: D) Nest Explanation: Here the first two words are synonyms. Similarly, Eyrie means a large nest. So, the synonym of Eyrie is nest.   Hence, Convent : Cloister :: Eyrie : Nest.

प्र: Amar can do a piece of work in 10 days. He works at it for 4 days and then Arun finishes it in 9 days. In how many days can Amar and Arun together finish the work ? 5572 0

  • 1
    4 days
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  • 2
    8 days
    सही
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  • 3
    3 days
    सही
    गलत
  • 4
    6 days
    सही
    गलत
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उत्तर : 4. "6 days"
व्याख्या :

Answer: D) 6 days Explanation: 4/10 + 9/x = 1     => x = 15    Then both can do in  1/10 + 1/15 = 1/6     => 6 days

प्र: The Study of Ancient Societies is called 5554 0

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    Anthropology
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  • 2
    Archaeology
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  • 3
    History
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  • 4
    Ethnology
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उत्तर : 2. "Archaeology"
व्याख्या :

Answer: B) Archaeology Explanation: Archaeology is the science which studies ancient societies based on their material remains. Through the analysis of objects and those works constructed by ancient peoples, this science can arrive at conclusions about their culture and their ways of life. There are several branches of Archaeology as well as many tools relevant to this science.

प्र: A sum of Rs. 427 is to be divided among A, B and C in such a way that 3 times A’s share, 4 times B’s share and 7 times C’s share are all equal. The share of C is ? 5540 0

  • 1
    64
    सही
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  • 2
    76
    सही
    गलत
  • 3
    84
    सही
    गलत
  • 4
    98
    सही
    गलत
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उत्तर : 3. "84"
व्याख्या :

Answer: C) 84 Explanation: Given total sum = Rs. 427And given that 3 times A’s share, 4 times B’s share and 7 times C’s share are all equal.=> 3A = 4B = 7CBut given=> A + B + C = 427Now express A and B in terms of C i.e=> (7C/3) + (7C/4) + C = 427=> C = 84

प्र: Find the odd number out of the following number series? 2 4 8 11.5 18.25 28.375 5524 0

  • 1
    18.25
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  • 2
    28.375
    सही
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  • 3
    11.5
    सही
    गलत
  • 4
    8
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उत्तर : 4. "8"
व्याख्या :

Answer: D) 8 Explanation: Given number series follows a pattern that, 2 2 x 1.5 + 1 = 4 4 x 1.5 + 1 = 7 (not equal to 8) 7 x 1.5 + 1 = 11.5 11.5 x 1.5 + 1 = 18.25 18.25 x 1.5 + 1 = 28.375   Hence, the odd number in the given number series is 8.

प्र: Which is the gas used for making vegetables and vanaspathi from vegetable oils? 5509 0

  • 1
    Hydrogen
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  • 2
    Nitrogen
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  • 3
    Argon
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  • 4
    Helium
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उत्तर : 1. "Hydrogen"
व्याख्या :

Answer: A) Hydrogen Explanation: Hydrogen gas is used for making vegetables and vanaspathi from vegetable oils. As it is colourless, odourless, tasteless, flammable gaseous substance, it is added to oils to make them more solid or spreadable. The use of hydrogenation helps to prolong the shelf life of the food and maintain flavour stability.

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