IIT JEE Practice Question and Answer

Q: Madhu got 32% of the maximum marks in a Bank examination and failed by 8 marks. However, Kumar who took the same examination got 42% of the total marks and got 16 marks more than the cut-off marks. What was the cut-off marks in the examination ? 1693 0

  • 1
    76.8
    Correct
    Wrong
  • 2
    86.8
    Correct
    Wrong
  • 3
    78.8
    Correct
    Wrong
  • 4
    84.8
    Correct
    Wrong
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Answer : 4. "84.8"
Explanation :

Answer: D) 84.8 Explanation: Let 'M' be the maximum marks in the examination. Therefore, Madhu got 32% of M = 32M/100 = 0.32MAnd Kumar got 42% of M = 42M/100 = 0.42M.In terms of the maximum marks Kumar got 0.42M - 0.32M = 0.1M more than Madhu. ---- (1) The problem however, states that Kumar got 16 marks more than the cut-off mark and Madhu got 8 marks less than the cut-off mark. Therefore, Kumar has got 16 + 8 = 24 marks more than Madhu. ---- (2) Now, Equating (1) and (2), we get0.1M = 24 => M = 24/0.1 = 240'M' is the maximum mark and is equal to 240 marks.We know that Madhu got 32% of the maximum marks.Therefore, Madhu got 32 x 240/100 = 76.8 marks.We also know that Madhu got 8 marks less than the cut-off marks. Therefore, the cut-off marks will be 8 marks more than what Madhu got = 76.8 + 8 = 84.8.

Q: I will disappear every time you say my name. What am I? 1693 0

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    Thief
    Correct
    Wrong
  • 2
    Silence
    Correct
    Wrong
  • 3
    Shadow
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 2. "Silence"
Explanation :

Answer: B) Silence Explanation:

Q: Who has won the men's singles title at the 82nd Senior National Championship? 1693 0

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    H S Prannoy
    Correct
    Wrong
  • 2
    Ashwini Kumar
    Correct
    Wrong
  • 3
    Rakesh Kumar
    Correct
    Wrong
  • 4
    Kidambi Srikanth
    Correct
    Wrong
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Answer : 1. "H S Prannoy"
Explanation :

Answer: A) H S Prannoy Explanation: H S Prannoy has won the men’s singles title at the 82nd Senior National Championship Senior National Badminton Championships in Nagpur, Maharashtra on November 8, 2017. He defeated higher ranked Kidambi Srikanth in the final by 21- 15, 16- 21, 21-7.

Q: The first country to make a constitution 1692 0

  • 1
    Russia
    Correct
    Wrong
  • 2
    United States
    Correct
    Wrong
  • 3
    France
    Correct
    Wrong
  • 4
    North Korea
    Correct
    Wrong
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Answer : 2. "United States"
Explanation :

Answer: B) United States Explanation: The United States Constitution, ratified June 21, 1788, was influenced by the writings of Polybius, Locke, Montesquieu, and others. The document became a benchmark for republicanism and codified constitutions written thereafter. The Polish–Lithuanian Commonwealth Constitution was passed on May 3, 1791.

Q: Which of the following is an Organic Molecule? 1692 0

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    Nitrogen gas
    Correct
    Wrong
  • 2
    Ammonia
    Correct
    Wrong
  • 3
    Fructose
    Correct
    Wrong
  • 4
    Water
    Correct
    Wrong
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Answer : 3. "Fructose"
Explanation :

Answer: C) Fructose Explanation: Fructose is an Organic molecule among the given options.    Organic Molecules : An organic molecule is one which contains carbon, although not all compounds that contain carbon are organic molecules. Noticeable exceptions are carbon monoxide (CO), carbon dioxide (CO2), carbonates (e.g. calcium carbonate), carbides (e.g. calcium carbide) and cyanides (e.g. sodium cyanide). Pure carbon compounds such as diamond and graphite are also not organic compounds. Organic molecules can range in size from simple molecules to complex structures containing thousands of atoms.   Although carbon is present in all organic compounds, other elements such as hydrogen (H), oxygen(O), nitrogen (N), sulfur (S) and phosphorus (P) are also common in these molecules.   In simple, Molecules needed for life that have carbon are called Organic Molecules.

Q: What is the Formula for Volume? 1692 0

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Answer :
Explanation :

The formula to find the volume is given by just multiplying Length, Breadth and Height of that object.   Thus, V = L x B X H   Volume Formulae :    1. Volume of Cube of side 's' = s x s x s = s3  cubic units.    2. Volume of Cylinder = πR2h cubic units.   [Where R is Radius and h is height]

Q: Who is the author of the Book 'Social Exclusion and Justice in India'? 1692 0

  • 1
    Rakesh Kumar
    Correct
    Wrong
  • 2
    Arun Singh
    Correct
    Wrong
  • 3
    M. Venkaiah Naidu
    Correct
    Wrong
  • 4
    P.S. Krishnan
    Correct
    Wrong
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Answer : 4. "P.S. Krishnan"
Explanation :

Answer: D) P.S. Krishnan Explanation:

Q: What travels around the world but stays in one spot? 1691 0

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Answer :
Explanation :

Therefore the answer for What travels around the world but stays in one spot is STAMP or any other thing that acts as a stamp does. Ex. the letter in the envelope etc...   Since, Several things have the possibility, but the word travel evokes that it would move.

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