IIT JEE Practice Question and Answer

Q: What event prompted the formation of the first continental congress? 1924 0

  • 1
    The Boston Massacre
    Correct
    Wrong
  • 2
    The battles of Lexington and Concord
    Correct
    Wrong
  • 3
    The Boston Tea Party
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "The Boston Tea Party"
Explanation :

Answer: C) The Boston Tea Party Explanation: Before the shots were fired at Lexington and Concord, the colonies made an attempt to settle the concerns and frustrations raised with the Intolerable Acts through debate and discussion. Thus, the First Continental Congress was called to order on September 5th, 1774. The First Continental Congress was a meeting of delegates from twelve of the Thirteen Colonies early in the American Revolution. It was called in response to the Intolerable Acts passed by the British Parliament, which the British referred to as the Coercive Acts, with which the British intended to punish Massachusetts for the Boston Tea Party.

Q: Eric is the son of Tom who is the brother of Jerry who is the daughter of Sin. Doremon is the sister of Popoy who is son of Chain. Ivanka is the daughter of Popoy who is the husband of Jerry. Sin is the male person and Chain is the female person. How is Ivanka related to Eric ? 1922 0

  • 1
    Cousin sister
    Correct
    Wrong
  • 2
    Nephew
    Correct
    Wrong
  • 3
    Niece
    Correct
    Wrong
  • 4
    Daughter
    Correct
    Wrong
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Answer : 1. "Cousin sister"
Explanation :

Answer: A) Cousin sister Explanation: Since Eric's father and Ivanka's mother are Brother and sister,  => Ivanka is Eric's Aunt Daughter => Cousin Sister.

Q: 14 persons are seated around a circular table. Find the probability that 3 particular persons always seated together. 1921 0

  • 1
    11/379
    Correct
    Wrong
  • 2
    21/628
    Correct
    Wrong
  • 3
    24/625
    Correct
    Wrong
  • 4
    26/247
    Correct
    Wrong
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Answer : 3. "24/625"
Explanation :

Answer: C) 24/625 Explanation: Total no of ways = (14 – 1)! = 13! Number of favorable ways = (12 – 1)! = 11!   So, required probability = 11!×3!13! = 39916800×66227020800 = 24625

Q: What is the science of mapmaking called? 1921 0

  • 1
    Coriography
    Correct
    Wrong
  • 2
    Cartography
    Correct
    Wrong
  • 3
    Photograrnmetry
    Correct
    Wrong
  • 4
    Mapping
    Correct
    Wrong
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Answer : 2. "Cartography"
Explanation :

Answer: B) Cartography Explanation: The art and science of map making is called Cartography.

Q: How many seconds in 10 years? 1921 0

  • 1
    31523500 sec
    Correct
    Wrong
  • 2
    315360000 sec
    Correct
    Wrong
  • 3
    315423000 sec
    Correct
    Wrong
  • 4
    315354000 sec
    Correct
    Wrong
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Answer : 2. "315360000 sec"
Explanation :

Answer: B) 315360000 sec Explanation: We know that, 1 year = 365 days 1 day = 24 hours 1 hour = 60 minutes 1 minute = 60 seconds.   Then, 1 year = 365 x 24 x 60 x 60 seconds. = 8760 x 3600 1 year = 31536000 seconds.   Hence, 10 years = 31536000 x 10 = 315360000 seconds.

Q: What important polymer is located in the nucleus? 1920 0

  • 1
    Ribosomes
    Correct
    Wrong
  • 2
    Chromosomes
    Correct
    Wrong
  • 3
    DNA
    Correct
    Wrong
  • 4
    Proteins
    Correct
    Wrong
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Answer : 3. "DNA"
Explanation :

Answer: C) DNA Explanation: The most important polymer present in the nucleus is DNA- the master molecule. It is a polymer of Nucleotides.

Q: Find the next number in the number series? 1, 4, 12, 32, ? 1919 0

  • 1
    80
    Correct
    Wrong
  • 2
    100
    Correct
    Wrong
  • 3
    192
    Correct
    Wrong
  • 4
    169
    Correct
    Wrong
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Answer : 1. "80"
Explanation :

Answer: A) 80 Explanation: Next number of the sequence 1, 4, 12, 32,... 1 = 2 x 20 4 = 2 x 21 12 = 3 x 22 32 = 4 x 23 80 = 5 x 24.

Q: Mary is 12 years younger to Pinky. After 3 years, the ratio of their ages will be 5:8. If the present age of Sam is the sum of ages of Mary and Pinky, then what was the age of Sam 15 years back ? 1918 0

  • 1
    31 years
    Correct
    Wrong
  • 2
    37 years
    Correct
    Wrong
  • 3
    46 years
    Correct
    Wrong
  • 4
    29 years
    Correct
    Wrong
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Answer : 1. "31 years"
Explanation :

Answer: A) 31 years Explanation: Let the present age of Pinky be x years   Then the age of Mary is x - 12 years   After 3 years,   Ratio of  MaryPinky = x - 9x + 3 = 58   8x - 72 = 5x +15   => 3x = 87   => x = 29   => Age of Pinky = 29 years   => Age of Mary = 29 - 12 = 17 years   Present age of Sam = 29 + 17 = 46   Before 15 years Sam age = 46 - 15 = 31 years.

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