CAT Practice Question and Answer

Q: In a group of 6 boys and 4 girls, four children are to be selected. In how many different ways can they be selected such that at least one boy should be there ? 1919 0

  • 1
    205
    Correct
    Wrong
  • 2
    194
    Correct
    Wrong
  • 3
    209
    Correct
    Wrong
  • 4
    159
    Correct
    Wrong
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Answer : 3. "209"
Explanation :

Answer: C) 209 Explanation: We may have (1 boy and 3 girls)or(2boys and 2 girls)or(3 boys and 1 girl)or(4 boys). Required number of ways = (C16× C34) + C26×C24  + (C36× C14) + (C46)   = (24+90+80+15)  = 209.

Q: In a test, minimum passing percentage for girls and boys is 35% and 40% respectively. A boy scored 483 marks and failed by 117 marks. What is the minimum passing marks for girls ? 1919 0

  • 1
    625
    Correct
    Wrong
  • 2
    525
    Correct
    Wrong
  • 3
    425
    Correct
    Wrong
  • 4
    325
    Correct
    Wrong
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Answer : 2. "525"
Explanation :

Answer: B) 525 Explanation: Given 40% minimum passing marks for boys = 483 + 117 = 600=> 1% = 600/40 => 100% = 600 x 100/40 = 1500Minimum passing marks for girls = 35% of 1500 = 35 x 1500/100 = 525.

Q: Which has the lowest albedo? 1917 0

  • 1
    dark surfaces
    Correct
    Wrong
  • 2
    light surfaces
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "dark surfaces"
Explanation :

Answer: A) dark surfaces Explanation: Albedo refers to a material's ability to reflect sunlight. Since 30% of the sun's energy is reflected by the entire earth, the earth has an average albedo of 0.30. Generally, dark surfaces have a low albedo and light surfaces have a high albedo.

Q: What has no beginning, end or middle? 1917 0

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Answer :
Explanation :

A Donut or Doughnut. Anything in the shape of a torus.

Q: What is PO invoice ? 1916 0

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Answer :
Explanation :

For material/Goods Purchases, the Po is required. In the Po, QTY, Product Name, Where is delivery price, Terms and Conditions. In the po there is no matter of final amount. It is just the approximate amount.

Q: A colour blind person has difficulty in distinguishing which of the two colours ? 1916 0

  • 1
    Green & Red
    Correct
    Wrong
  • 2
    White & Red
    Correct
    Wrong
  • 3
    Blue & Red
    Correct
    Wrong
  • 4
    Red & Black
    Correct
    Wrong
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Answer : 1. "Green & Red"
Explanation :

Answer: A) Green & Red Explanation:

Q: Who was appointed as Deputy Governor of RBI recently ? 1916 0

  • 1
    SS Mundra
    Correct
    Wrong
  • 2
    Viral Acharya
    Correct
    Wrong
  • 3
    Urjit Patel
    Correct
    Wrong
  • 4
    R Gandhi
    Correct
    Wrong
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Answer : 2. "Viral Acharya"
Explanation :

Answer: B) Viral Acharya Explanation: The government on 28th December, 2016 appointed Viral Acharya as the Deputy Governor of the RBI. He will be joining the ranks of NS Vishwanathan, SS Mundra, R Gandhi as one of four Deputy Governors under RBI Governor Urjit Patel. Acharya has been serving as a Professor of Economics at the New York University Stern School of Business since 2008.

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