IIT JEE Practice Question and Answer

Q: Multiplicative inverse of 0 1570 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    infinity
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 4. "None of the above"
Explanation :

Answer: D) None of the above Explanation: In the real numbers, zero does not have a reciprocal because no real number multiplied by 0 produces 1 (the product of any number with zero is zero).   Hence, 0 doesn't have any multiplicative inverse.

Q: Can you solve the Math Puzzle ? 1569 0

  • 1
    12
    Correct
    Wrong
  • 2
    15
    Correct
    Wrong
  • 3
    17
    Correct
    Wrong
  • 4
    19
    Correct
    Wrong
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Answer : 2. "15"
Explanation :

Answer: B) 15 Explanation: The puzzle's logic is 1st figure : (9-7) + (8-5) = 2 + 3 = 5 2nd figure : (15-6) + (11-2) = 9 + 9 = 18 similarly, 3rd figure : (9-6) + (17-5) = 3 + 12 = 15.

Q: Which of the following is not a Fundamental Right? 1569 0

  • 1
    Right To Freedom Of Speech And Expression
    Correct
    Wrong
  • 2
    Right To Employment
    Correct
    Wrong
  • 3
    Right To Equality
    Correct
    Wrong
  • 4
    Right To Education
    Correct
    Wrong
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Answer : 2. "Right To Employment"
Explanation :

Answer: B) Right To Employment Explanation: Fundamental Rights are the basic rights of the common people and inalienable rights of the people who enjoy it under the charter of rights of Constitution of India.   The six fundamental rights recognised by the Indian constitution are:: the right to equality, right to freedom, right against exploitation, right to freedom of religion, cultural and educational rights, right to constitutional remedies.

Q: Which online security campaign has been launched by Google India to safeguard internet users? 1569 0

  • 1
    #SecurityCheckKiya
    Correct
    Wrong
  • 2
    #InternetSafetyKiya
    Correct
    Wrong
  • 3
    #OnlineSecurityKiya
    Correct
    Wrong
  • 4
    #SecureInternetKiya
    Correct
    Wrong
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Answer : 1. "#SecurityCheckKiya"
Explanation :

Answer: A) #SecurityCheckKiya Explanation: Google has launched new online security campaign #SecurityCheckKiya in India to promote security awareness among general public. The purpose of the campaign is to protect young and first-time web users from account hijacking, safeguard Android devices from malicious apps and secure all their personal data if they lose their device.

Q: Carbohydrates, lipids and proteins are classified as 1569 0

  • 1
    Macromolecules
    Correct
    Wrong
  • 2
    Biomolecules
    Correct
    Wrong
  • 3
    Macronutrients
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation: Carbohydrates, together with lipids, proteins and nucleic acids, are one of the four major classes of biologically essential organic molecules found in all living organisms. They not only provide energy for vital metabolic reactions but also supply the building materials for normal structure, growth and repair. Your body needs relatively large quantities of carbohydrates, fats and protein for optimal function, hence their classification as macronutrients.

Q: What is the currency of Singapore? 1569 0

  • 1
    Krone
    Correct
    Wrong
  • 2
    Dollar
    Correct
    Wrong
  • 3
    Tenge
    Correct
    Wrong
  • 4
    Pound
    Correct
    Wrong
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Answer : 2. "Dollar"
Explanation :

Answer: B) Dollar Explanation:

Q: How many spaces are required between punctuation? 1568 0

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

Answer: A) 1 Explanation: While using punctuations, only one space is used.

Q: Find the C.I. on Rs. 15,225 for 9 months at 16% per annum compounded quarterly ? 1568 0

  • 1
    Rs. 1911
    Correct
    Wrong
  • 2
    Rs. 1909
    Correct
    Wrong
  • 3
    Rs. 1901
    Correct
    Wrong
  • 4
    Rs. 1907
    Correct
    Wrong
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Answer : 3. "Rs. 1901"
Explanation :

Answer: C) Rs. 1901 Explanation: P = Rs. 15225, n = 9 months = 3 quarters, R = 16% p.a. per quarter.   Amount = 15225x1+41003   = (15225 x 26/25 x 26/25 x 26/25) = Rs. 17126.05   => C.I. = 17126 - 15625 = Rs. 1901.05.

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