IIT JEE Practice Question and Answer

Q: Atoms Are Composed Of 994 0

  • 1
    Electrons and Protons
    Correct
    Wrong
  • 2
    Protons and Nuclei
    Correct
    Wrong
  • 3
    Only Electrons
    Correct
    Wrong
  • 4
    Electrons and Nuclei
    Correct
    Wrong
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Answer : 4. "Electrons and Nuclei"
Explanation :

Answer: D) Electrons and Nuclei Explanation: Atoms are composed of Electrons, protons and Neutrons. Protons and Neutrons together called as Nuclei.

Q: I am always infront of you, but you will never see me. Who am I? 993 0

  • 1
    Mirror
    Correct
    Wrong
  • 2
    Shadow
    Correct
    Wrong
  • 3
    Future
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "Future"
Explanation :

Answer: C) Future Explanation: Yes, future is always infront of us, but no one can see it.

Q: Find the Missing Number Puzzle for the Given 992 0

  • 1
    8
    Correct
    Wrong
  • 2
    16
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 3. "9"
Explanation :

Answer: C) 9 Explanation: Given   6 = 3 => Number of letters in SIX = 3   12 = 6 => Number of letters in TWELVE = 6   14 = 8 => Number of letters in FOURTEEN = 8   Similarly,   22 = 9 => Number of letters in TWENTY TWO = 9           Therefore, 22 = 9.

Q: What is formed by all the ecosystems of the earth? 991 0

  • 1
    Biosphere
    Correct
    Wrong
  • 2
    Troposphere
    Correct
    Wrong
  • 3
    Stratosphere
    Correct
    Wrong
  • 4
    Ionosphere
    Correct
    Wrong
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Answer : 1. "Biosphere"
Explanation :

Answer: A) Biosphere Explanation: A biosphere is the sum of all the ecosystems established on planet Earth. An ecosystem is an area in which the plants and animals all interact to create a living environment. Therefore ecosystem is a smaller unit of earth, all ecosystems together form the earth.

Q: What position did Babe Ruth play 991 0

  • 1
    Only 1st base
    Correct
    Wrong
  • 2
    Both pitcher and out fielder
    Correct
    Wrong
  • 3
    Only out fielder
    Correct
    Wrong
  • 4
    Only pitcher
    Correct
    Wrong
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Answer : 2. "Both pitcher and out fielder"
Explanation :

Answer: B) Both pitcher and out fielder Explanation:

Q: 311, 230, 294, ?, 281, 256   What will come in place of the question mark (?) in the above number series? 991 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: 9th BRICS summit was held in ___________ ? 990 0

  • 1
    Beijing
    Correct
    Wrong
  • 2
    Shangai
    Correct
    Wrong
  • 3
    Xiamen
    Correct
    Wrong
  • 4
    Chengdu
    Correct
    Wrong
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Answer : 3. "Xiamen"
Explanation :

Answer: C) Xiamen Explanation: 9th BRICS summit was held in Xiamen, China with the theme "BRICS: Stronger Partnership for a Brighter Future".

Q: Guess the Number missed in Number Challenge ? 990 0

  • 1
    3
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 2. "5"
Explanation :

Answer: B) 5 Explanation: Sum of numbers in all individual boxes must be equal. Here sum must be equal to 30. => x + 14 + 9 + 2 = 30 => x = 5.

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