IIT JEE Practice Question and Answer

Q: What do genes code for? 1054 0

  • 1
    Ptoteins
    Correct
    Wrong
  • 2
    DNA
    Correct
    Wrong
  • 3
    RNA
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "Ptoteins"
Explanation :

Answer: A) Ptoteins Explanation: The genome of an organism is inscribed in DNA, or in some viruses RNA. The portion of the genome that codes for a protein or an RNA is referred to as a gene. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.

Q: If x and y are the two digits of the number 653xy such that this number is divisible by 80, then x+y is equal to  ? 1054 0

  • 1
    5
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    2
    Correct
    Wrong
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Answer : 4. "2"
Explanation :

Answer: D) 2 Explanation: Since 653xy is divisible by 5 as well as 2, so y = 0.Now, 653x0 must be divisible by 8.So, 3x0 must be divisible by 8. This happens when x = 2x + y = (2 + 0) = 2.

Q: What is the function of an antagonist in a story? 1052 0

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Answer :
Explanation :

The antagonist is the negative or opposing force in a story. It could be a human enemy, or it could be non-human, like an animal or something less tangible, like fear.   The antagonist plays an important role in story development.

Q: At what temperature (in Fahrenheit) pure water freezes? 1051 0

  • 1
    0
    Correct
    Wrong
  • 2
    17
    Correct
    Wrong
  • 3
    32
    Correct
    Wrong
  • 4
    39
    Correct
    Wrong
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Answer : 3. "32"
Explanation :

Answer: C) 32 Explanation: 32oFWe know that T(°F) = T(°C) × 1.8 + 3232(°F) = 0(°C)

Q: Several Budget proposals, including the reintroduction of the tax on long-term capital gains (LTCG) exceeding __ from the sale of shares, will kick in from 01st April 2018, the beginning of the 2018-19 financial year. 1050 0

  • 1
    1 lakh
    Correct
    Wrong
  • 2
    2 lakhs
    Correct
    Wrong
  • 3
    3 lakhs
    Correct
    Wrong
  • 4
    4 lakhs
    Correct
    Wrong
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Answer : 1. "1 lakh"
Explanation :

Answer: A) 1 lakh Explanation: Several Budget proposals, including the reintroduction of the tax on long-term capital gains (LTCG) exceeding 1 lakh from the sale of shares, will kick in from 01st April 2018, the beginning of the 2018-19 financial year.

Q: International Day of United Nations Peacekeepers was observed on 1050 0

  • 1
    28 May
    Correct
    Wrong
  • 2
    29 May
    Correct
    Wrong
  • 3
    30 May
    Correct
    Wrong
  • 4
    31 May
    Correct
    Wrong
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Answer : 2. "29 May"
Explanation :

Answer: B) 29 May Explanation: The United Nations General Assembly designated 29 May as the International Day of United Nations Peacekeepers. The day has two purposes: To honour the memory of the UN peacekeepers who have lost their lives in the cause of peace. To pay tribute to all the men and women who have served and continue to serve in UN Peacekeeping operations for their high level of professionalism, dedication and courage. The theme for the 2017 International Day of UN Peacekeepers is “Investing in Peace Around the World“.

Q: 311, 230, 294, ?, 281, 256   What will come in place of the question mark (?) in the above number series? 1050 0

  • 1
    240
    Correct
    Wrong
  • 2
    245
    Correct
    Wrong
  • 3
    244
    Correct
    Wrong
  • 4
    246
    Correct
    Wrong
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Answer : 2. "245"
Explanation :

Answer: B) 245 Explanation: Given 311   230   294   ?   281   256   311 - (9x9) = 230   230 + (8x8) = 294   294 - (7x7) = 245   245 + (6x6) = 281   281 - (5x5) = 256   Hence, the missing number in the given series is 245.

Q: The average marks of a student in 7 subjects is 85. His average marks in 6 subjects except English is 83. What is his marks in English ? 1050 0

  • 1
    97
    Correct
    Wrong
  • 2
    98
    Correct
    Wrong
  • 3
    92
    Correct
    Wrong
  • 4
    93
    Correct
    Wrong
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Answer : 1. "97"
Explanation :

Answer: A) 97 Explanation: Marks in English  = 85×7 – 83×6 = 595 – 498 = 97

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