IIT JEE Practice Question and Answer

Q: Which statement best describes the cold war in 1989? 1942 0

  • 1
    The coldwar started
    Correct
    Wrong
  • 2
    Atom bomb on USSR
    Correct
    Wrong
  • 3
    Glorious revolution occured
    Correct
    Wrong
  • 4
    Beginning of the end of cold war
    Correct
    Wrong
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Answer : 4. "Beginning of the end of cold war"
Explanation :

Answer: D) Beginning of the end of cold war Explanation: The Cold War started with building tensions between the US and the USSR during World War II. As Stalin began to annex more countries and spread communism throughout Eastern Europe, the US began to feel threatened and feared that they would start a war amongst the capitalist nations. The US started an attempt to limit the spread of communism and protect capitalism, which led to a series of passive aggressive and indirectly hostile exchanges between the two nations.   The beginning of the end of the cold war, the Berlin Wall came down. The USSR began to collapse the following year, in 1990.

Q: 1 4 27 _  3125 46656 Find the missing number in the given series? 1939 0

  • 1
    125
    Correct
    Wrong
  • 2
    625
    Correct
    Wrong
  • 3
    404
    Correct
    Wrong
  • 4
    256
    Correct
    Wrong
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Answer : 4. "256"
Explanation :

Answer: D) 256 Explanation: It follows the rule that   1 2x2  3x3x3  4x4x4x4   5x5x5x5x5  ...   So the missing number is 4x4x4x4 = 256.

Q: Who has been elected as Chairman and CEO of KPMG India in 2017 ? 1937 0

  • 1
    Richard Rekhy
    Correct
    Wrong
  • 2
    John Veihmeyer
    Correct
    Wrong
  • 3
    Subir Moitra
    Correct
    Wrong
  • 4
    Arun M Kumar
    Correct
    Wrong
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Answer : 4. "Arun M Kumar"
Explanation :

Answer: D) Arun M Kumar Explanation: KPMG in India announced the election of Arun M. Kumar as Chairman and Chief Executive Officer of the firm for a five-year term, on February 5, 2017.Arun Kumar succeeds Richard Rekhy, who led the firm as CEO for over four years. Arun Kumar was elected by the KPMG India Board and ratified by the India Partners. The firm executed a well-defined governance process for the selection of the CEO that aligns with the objective of building on its success as well as attracting the best talent available for this role. Arun Kumar brings a wealth of international leadership experience to KPMG India, including his tenure in public service in the United States for the last three years as Assistant Secretary of Commerce for Global Markets and Director General of US and Foreign Commercial Service in the Obama Administration.

Q: What prevents food from entering the windpipe? 1937 0

  • 1
    Epiglottis
    Correct
    Wrong
  • 2
    Pharynx
    Correct
    Wrong
  • 3
    Trachea
    Correct
    Wrong
  • 4
    Larynx
    Correct
    Wrong
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Answer : 1. "Epiglottis"
Explanation :

Answer: A) Epiglottis Explanation: Epiglottis is that prevents food from entering the windpipe.  It is a cartilageous flap that flaps opens and closes when swallowing. When you swallow, the epiglottis flattens backward to cover the entrance to your larynx and prevent food from entering the lungs and windpipe. The epiglottis returns to its usual position after swallowing.

Q: Which three components are common to all amino acids? 1937 0

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Answer :
Explanation :

Any two amino acids vary structure by the r-group, otherwise all amino acids are in the same structure. All amino acids have in common carboxyl group -COO , amino group -NH3+ and a hydrogen -H and a r-group which are all bonded to a central carbon.

Q: Which Temple has been named as the cleanest iconic place in India under the 'Swachhata Hi Seva' Programme ? 1936 0

  • 1
    Vaishno Devi Temple
    Correct
    Wrong
  • 2
    Tirupathi Temple
    Correct
    Wrong
  • 3
    Golden Temple
    Correct
    Wrong
  • 4
    Meenakshi Temple
    Correct
    Wrong
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Answer : 4. "Meenakshi Temple"
Explanation :

Answer: D) Meenakshi Temple Explanation: The Meenakshi Temple in Tamil Nadu's Madurai has been named the cleanest iconic place in India under the 'Swachhata Hi Seva' programme.

Q: Anil purchases two books for Rs.100. He sells first at loss of 5% and second al 20% profit. If he gets Overall profit of 5% then what is cost of first book? 1935 0

  • 1
    58
    Correct
    Wrong
  • 2
    60
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    45
    Correct
    Wrong
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Answer : 2. "60"
Explanation :

Answer: B) 60 Explanation: -5-----------------------5-------------------20 5-(-5) = 10 20-5= 15 Ratio of cost price of book1 and book2 = 3:2  Then cost price of book 1 is given by (3/5) x 100 = Rs. 60.

Q: There is 50% increase in an amount in 5 years at simple interest. What will be the compound interest of Rs. 12,000 after 3 years at the same rate ? 1934 0

  • 1
    Rs. 5422
    Correct
    Wrong
  • 2
    Rs. 5489
    Correct
    Wrong
  • 3
    Rs. 3972
    Correct
    Wrong
  • 4
    Rs. 6145
    Correct
    Wrong
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Answer : 3. "Rs. 3972"
Explanation :

Answer: C) Rs. 3972 Explanation: Let p = Rs. 100. Then, S.I is Rs. 50 and time = 5 years.  ∴ R = 100×50100×5= 10% p.a.   Now, p = Rs. 12,000 , T = 3 years and R = 10% p.a. C.I. = Rs. 12000×1+101003-1= Rs. 3972

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