IIT JEE Practice Question and Answer

Q: Selling an article at a profit of 20%, Aman gets Rs. 400 more than selling at a loss of 20%. The cost price of the article is ? 2124 0

  • 1
    Rs.1000
    Correct
    Wrong
  • 2
    Rs. 1020
    Correct
    Wrong
  • 3
    Rs.1210
    Correct
    Wrong
  • 4
    Rs.1140
    Correct
    Wrong
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Answer : 1. "Rs.1000"
Explanation :

Answer: A) Rs.1000 Explanation: Cost price of the article is given by = 400x100/(20+20) = Rs.1000

Q: Who has won the Nobel prize in "Physics" for the year 2017 ? 1153 0

  • 1
    Barry Barish
    Correct
    Wrong
  • 2
    Kip Thorne
    Correct
    Wrong
  • 3
    Rainer Weiss
    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: Rainer Weiss, a professor at the Massachusetts Institute of Technology, and Kip Thorne and Barry Barish, both of the California Institute of Technology, were awarded the Nobel Prize in Physics for the discovery of ripples in space-time known as gravitational waves, which were predicted by Albert Einstein a century ago but had never been directly seen.

Q: Area of a square and a rectangle are equal. If side of the square is 40 cm and length of the rectangle is 64 cm, what is the perimeter of the rectangle ? 1353 0

  • 1
    187 cm
    Correct
    Wrong
  • 2
    178 cm
    Correct
    Wrong
  • 3
    149 cm
    Correct
    Wrong
  • 4
    194 cm
    Correct
    Wrong
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Answer : 2. "178 cm"
Explanation :

Answer: B) 178 cm Explanation: Area of square = 40 x 40 = 1600 sq.cm Given that the areas of Square and Rectangle are equal => Area of rectangle = 1600 Sq.cm We know that, Area of rectangle = L x B Given L = 64 cm Breadth of rectangle = 1600/64 = 25 cm Perimeter of the rectangle = 2(L + B) = 2(64+25) = 178 cm.

Q: Which player has become the first left-arm spinner to take 400 wickets in Test cricket ? 1842 0

  • 1
    Ravindra Jadeja
    Correct
    Wrong
  • 2
    Mitchell Starc
    Correct
    Wrong
  • 3
    Rangana Herath
    Correct
    Wrong
  • 4
    Kuldeep Yadav
    Correct
    Wrong
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Answer : 3. "Rangana Herath"
Explanation :

Answer: C) Rangana Herath Explanation:

Q: Khushi bought the bangles of equal number of Rs. 34 per piece, Rs. 42 per piece and Rs. 6 per piece. She spends total Rs. 1722 on all types of bangles. How many bangles did she buy of each type  ? 1674 0

  • 1
    27
    Correct
    Wrong
  • 2
    13
    Correct
    Wrong
  • 3
    17
    Correct
    Wrong
  • 4
    21
    Correct
    Wrong
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Answer : 4. "21"
Explanation :

Answer: D) 21 Explanation: Let number of bangles kushi purchase of each type = x From the given data, 34x + 42x + 6x = 1722 x = 1722/82 = 21.

Q: In which city 2017 Global Entrepreneurship Summit will be held ? 1086 0

  • 1
    New Delhi
    Correct
    Wrong
  • 2
    Hyderabad
    Correct
    Wrong
  • 3
    Bangaluru
    Correct
    Wrong
  • 4
    Mumbai
    Correct
    Wrong
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Answer : 2. "Hyderabad"
Explanation :

Answer: B) Hyderabad Explanation: Government of India and the United States met today at NITI Aayog to plan the 2017 Global Entrepreneurship Summit, which will be held November 28-30 at the Hyderabad International Convention Centre in Hyderabad, India. The Summit will be inaugurated by Prime Minister Narendra Modi and Advisor to the President, Ivanka Trump, who leads the U.S. delegation.

Q: P can do a piece of work in 5 less days than Q. If both of them can do the same work in 1119days, in how many days will Q alone do the same work  ? 1495 0

  • 1
    24 days
    Correct
    Wrong
  • 2
    25 days
    Correct
    Wrong
  • 3
    20 days
    Correct
    Wrong
  • 4
    19 days
    Correct
    Wrong
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Answer : 2. "25 days"
Explanation :

Answer: B) 25 days Explanation: Let Q complete that work in 'L' days   => 1L + 1L-5 = 9100   => 9L2-245L+500=0   L = 25 days.

Q: Who has been appointed as the deputy director-general of World Health Organization (WHO) ? 1720 0

  • 1
    Dr. Soumya Swaminathan
    Correct
    Wrong
  • 2
    Rajat Nandan
    Correct
    Wrong
  • 3
    prof. Dr. Vikash Jha
    Correct
    Wrong
  • 4
    Sunil Narayan
    Correct
    Wrong
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Answer : 1. "Dr. Soumya Swaminathan"
Explanation :

Answer: A) Dr. Soumya Swaminathan Explanation: The World Health Organization is a specialized agency of the United Nations that is concerned with international public health. It was established on 7 April 1948, Headquartered in Geneva, Switzerland. Dr Soumya Swaminathan has been appointed the deputy director general for programmes (DDP) of World Health Organisation (WHO). She also holds a key position as secretary in the department of health research, ministry of health and family welfare.

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