IIT JEE Practice Question and Answer

Q: What gas makes up most of the atmosphere? 1547 0

  • 1
    Oxygen
    Correct
    Wrong
  • 2
    Helium
    Correct
    Wrong
  • 3
    Nitrogen
    Correct
    Wrong
  • 4
    Carbondioxide
    Correct
    Wrong
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Answer : 3. "Nitrogen"
Explanation :

Answer: C) Nitrogen Explanation: Our atmosphere is made up of 78% Nitrogen, 21% Oxygen and 1% all other gases like argon, carbon dioxide, neon, and helium.   So, Nitrogen makes up the majority of our atmosphere.

Q: I have a face but no eyes Puzzle 1547 0

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Answer :
Explanation :

A Clock has a face, but no eyes. It has 3 hands i.e, hours, minutes and seconds hands but no arms.

Q: _______has conferred the 'Best Performance Award' for 2015-16 and 2016-17 to Karnataka VIKAS GRAMEEN Bank (KVGB) for its work in the field of credit-linking joint liability groups (JLGs). 1546 0

  • 1
    B) for its work in the field of credit-linking joint liability groups (JLGs). A)
    Correct
    Wrong
  • 2
    for its work in the field of credit-linking joint liability groups (JLGs). A) RBI B) RRB
    Correct
    Wrong
  • 3
    NABARD
    Correct
    Wrong
  • 4
    SBI
    Correct
    Wrong
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Answer : 3. "NABARD"
Explanation :

Answer: C) NABARD Explanation:

Q: Which award the Electronic Vaccine Intelligence Network (EVIN) app won in 2017 ? 1546 0

  • 1
    Padma Award
    Correct
    Wrong
  • 2
    GSMA Asia Mobile Award
    Correct
    Wrong
  • 3
    Best app of the year
    Correct
    Wrong
  • 4
    National Award
    Correct
    Wrong
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Answer : 2. "GSMA Asia Mobile Award"
Explanation :

Answer: B) GSMA Asia Mobile Award Explanation:

Q: Who among the following took over as the 25th Director General of the Border Roads(DGBR) ? 1546 0

  • 1
    Lt. Gen. Suresh Sharma
    Correct
    Wrong
  • 2
    Lt. Gen. David R. Syiemlieh
    Correct
    Wrong
  • 3
    Lt. Gen. Srikanth Mishra
    Correct
    Wrong
  • 4
    Lt. Gen. Sanjeev Kumar Shrivastava
    Correct
    Wrong
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Answer : 4. "Lt. Gen. Sanjeev Kumar Shrivastava"
Explanation :

Answer: D) Lt. Gen. Sanjeev Kumar Shrivastava Explanation: Lt. Gen. Sanjeev Kumar Shrivastava took over as the 25th Director General of the Border Roads (DGBR). He has replaced Lt. Gen. Suresh Sharma. Prior to it, he was holding the appointment of Director General Combat Engineers at Integrated Headquarters of Ministry of Defence(Army).

Q: A man purchases two articles, on selling one at loss of 20% while the other at a profit of 25%, he gains the overall profit of 5% than find the ratio of their selling price ? 1544 0

  • 1
    8 : 62.5
    Correct
    Wrong
  • 2
    55 : 8
    Correct
    Wrong
  • 3
    8 : 65
    Correct
    Wrong
  • 4
    64.4 : 9
    Correct
    Wrong
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Answer : 1. "8 : 62.5"
Explanation :

Answer: A) 8 : 62.5 Explanation:                       Article I                   Article II                         -20                         25%                                        5%                         20%                       25%                                                4              :              5 Now, Selling of first article = (4-20%) = 0.8 Selling of second article = (5+25%) =  6.25 Therefore the ratio of selling price = 8 : 62.5

Q: A man sold two flats for Rs. 4.15 lakhs each. On one he gained 2% and on the other he lost 2%. What percent is the effect of the sale on the whole  ? 1544 0

  • 1
    0.25 %
    Correct
    Wrong
  • 2
    0.04 %
    Correct
    Wrong
  • 3
    0.5 %
    Correct
    Wrong
  • 4
    0 %
    Correct
    Wrong
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Answer : 2. "0.04 %"
Explanation :

Answer: B) 0.04 % Explanation: In this type cases we always have loss only.   Loss% = Common Gain or Loss102= 2102= 1/25 = 0.04 %

Q: According to a survey, which country has become the second largest smartphone market in the world? 1544 0

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

Answer: C) India Explanation: According to a Report by analyst firm Canalys, India has become the second largest smartphone market in the world.

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