IIT JEE Practice Question and Answer

Q: Choose apropriate words which gives a complete meaning to the sentence from the given options. we were thinking ______ it _______ something like a requiem for our age. 2110 0

  • 1
    for, because
    Correct
    Wrong
  • 2
    for, as
    Correct
    Wrong
  • 3
    of, as
    Correct
    Wrong
  • 4
    of, since
    Correct
    Wrong
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Answer : 3. "of, as"
Explanation :

Answer: C) of, as Explanation:

Q: The term aerotolerant anaerobe refers to an organism that 2110 0

  • 1
    uses oxygen or grows without oxygen.
    Correct
    Wrong
  • 2
    requires more oxygen than is present in air.
    Correct
    Wrong
  • 3
    does not use oxygen but tolerates it.
    Correct
    Wrong
  • 4
    requires less oxygen than is present in air.
    Correct
    Wrong
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Answer : 3. "does not use oxygen but tolerates it."
Explanation :

Answer: C) does not use oxygen but tolerates it. Explanation:

Q: Sandalwood is largely found in 2110 0

  • 1
    India
    Correct
    Wrong
  • 2
    Japan
    Correct
    Wrong
  • 3
    China
    Correct
    Wrong
  • 4
    Nepal
    Correct
    Wrong
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Answer : 1. "India"
Explanation :

Answer: A) India Explanation: Sandalwood is largely found in India and they are government owned and their harvest is controlled.   Naturally grown sandalwood can be easily found in Karnataka, Tamilnadu, Andhra, Kerala, Gujarat, Madhya Pradesh, and U.P. Manipura and in some other states of India.

Q: 6 boys and 8 girls can do job in 10 days , 26 boys & 48 women do work in 2 days. Find time taken by 15 boys and 20 girls to do same work ? 2109 0

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

Answer: C) 4 days Explanation: One day work of 6 boys and 8 girls is given as 6b + 8g = 1/10 -------->(I)   One day work of 26 boys and 48 women is given as 26b + 48w = 1/2 -------->(II)   Divide both sides by 2 in (I) and then multiply both sides by 5 Now we get, 15b + 20g = 1/4. Therefore, 15 boys and 20 girls can do the same work in 4 days.

Q: What color does yellow and green make? 2108 0

  • 1
    Lime
    Correct
    Wrong
  • 2
    Ocean mist
    Correct
    Wrong
  • 3
    Maroon
    Correct
    Wrong
  • 4
    Tangerine
    Correct
    Wrong
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Answer : 1. "Lime"
Explanation :

Answer: A) Lime Explanation: Yellow and green color mix make a Lime color.   The three primary colors in additive mixing are red, green, and blue. In the absence of color or, when no colors are showing, the result is black. If all three primary colors are showing, the result is white. When red and green combine, the result is yellow. When red and blue combine, the result is magenta. When blue and green combine, the result is cyan.

Q: Which element is a member of the halogen family? 2108 0

  • 1
    Chlorine
    Correct
    Wrong
  • 2
    Bromine
    Correct
    Wrong
  • 3
    Iodine
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 4. "All of the above"
Explanation :

Answer: D) All of the above Explanation: The halogens make up group 17 in the periodic table. They are five elements: Chlorine (Cl) Fluorine (F) Bromine (B) Iodine (I) Astatine (At). But astatine is not purely halogen as it is radioactive.

Q: A batsman scored 180 runs which included 11 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets ? 2108 0

  • 1
    62.45%
    Correct
    Wrong
  • 2
    51.42%
    Correct
    Wrong
  • 3
    48.88%
    Correct
    Wrong
  • 4
    47.32%
    Correct
    Wrong
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Answer : 3. "48.88%"
Explanation :

Answer: C) 48.88% Explanation: Number of runs made by running = 180 - (11 x 4 + 8 x 6)= 180 - (92)= 88Now, we need to calculate 88 is what percent of 180.⇒88180×100  = 48.888%.

Q: What will come in place of the question mark (?) in the following number series? 312      231      295      ?      282      257 2108 0

  • 1
    210
    Correct
    Wrong
  • 2
    25
    Correct
    Wrong
  • 3
    246
    Correct
    Wrong
  • 4
    279
    Correct
    Wrong
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Answer : 3. "246"
Explanation :

Answer: C) 246 Explanation: The series follows a pattern that, -92, +82, -72, +62, -52

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