IIT JEE Practice Question and Answer

Q: A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red? 1694 0

  • 1
    2/3
    Correct
    Wrong
  • 2
    1/8
    Correct
    Wrong
  • 3
    3/8
    Correct
    Wrong
  • 4
    3/4
    Correct
    Wrong
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Answer : 1. "2/3"
Explanation :

Answer: A) 2/3 Explanation: Given number of balls = 3 + 5 + 7 = 15 One ball is drawn randomly = 15C1 probability that it is either pink or red = 7C1 + 3C115C1 = 7 + 315 = 1015 = 23

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Answer :
Explanation :

The poison was in the ice. When the girl drank the iced tea, the ice was still fully frozen. Gradually, as the ice cubes melted the poison was released into the drink.   Hence, the girl who died, drunk the tea after the ice melted. So, she was died.

Q: How much does a gallon of water weigh? 1694 0

  • 1
    2.741 kgs
    Correct
    Wrong
  • 2
    2.956 kgs
    Correct
    Wrong
  • 3
    3.418 kgs
    Correct
    Wrong
  • 4
    3.785 kgs
    Correct
    Wrong
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Answer : 4. "3.785 kgs"
Explanation :

Answer: D) 3.785 kgs Explanation: 1 Gallon = 3.785 kgs Gallon is a unit of measurement of liquid. We know that 1 gallon = 3.785 liters But we know that, 1 cubic meter = 1000 lit or 1000 kgs => 1 lit = 1 kg Hence,  1 gallon = 3.785 lit = 3.785 kgs.

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Answer : 1. "Only a follows"
Explanation :

Answer: A) Only a follows Explanation: The problem faced, by the airlines and cargo agents is the non availability of cargo space. Therefore, right course of action is to combat the problem.

Q: Avanthi’s age is 1/6th of her father’s age. Her father’s age will be twice of Kapil’s age after 10 years. If Kapil’s eighth birthday was celebrated two years ago, then what is Avanthi’s present age ? 1694 0

  • 1
    6 years
    Correct
    Wrong
  • 2
    4 years
    Correct
    Wrong
  • 3
    7 years
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 4. "None"
Explanation :

Answer: D) None Explanation: As given Kapil's 8th birthday was celebrated 2 years ago, Kapil’s present age = 8 + 2 = 10 years. Father's age is twice of Kapil’s age after 10 years. => F + 10 = 2 (K + 10) = 2 (10+ 10)F = 30years, Avanthi's age =1/6(F) = 30/6 = 5 years.

Q: India is the largest producer of 1694 0

  • 1
    Cotton
    Correct
    Wrong
  • 2
    Milk
    Correct
    Wrong
  • 3
    Mangoes
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation: As per the latest updates, India is :   Largest producer of milk. Largest producer of millets in the world. Largest producer of jute. Largest producer of ginger. Largest producer of bananas. Largest producer of castor oil seeds. Largest producer of mangoes. Largest producer of safflower oil seeds. Largest producer of papayas. Largest producer of cottonseed (As per International Cotton Advisory Committee (ICAC) report for the month of March 2017)   Second largest producer of tea, the first position being held by China. Second largest producer of sugarcane, the first position being held by Brazil. Second largest producer of wheat, the first position being held by China. Second largest producer of onions, the first position being held by China. Second largest producer of potatoes, the first position being held by China. Second largest producer of garlic, the first position being held by China. Second largest producer of rice, the first position being held by China. Second largest producer of cement., next to China. Second largest producer of silk, the first position being held by China.

Q: Who has won the men's singles title at the 82nd Senior National Championship? 1693 0

  • 1
    H S Prannoy
    Correct
    Wrong
  • 2
    Ashwini Kumar
    Correct
    Wrong
  • 3
    Rakesh Kumar
    Correct
    Wrong
  • 4
    Kidambi Srikanth
    Correct
    Wrong
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Answer : 1. "H S Prannoy"
Explanation :

Answer: A) H S Prannoy Explanation: H S Prannoy has won the men’s singles title at the 82nd Senior National Championship Senior National Badminton Championships in Nagpur, Maharashtra on November 8, 2017. He defeated higher ranked Kidambi Srikanth in the final by 21- 15, 16- 21, 21-7.

Q: Which of the following is not an Endocrine Gland? 1693 0

  • 1
    Spleen
    Correct
    Wrong
  • 2
    Pituitary
    Correct
    Wrong
  • 3
    Thyroid
    Correct
    Wrong
  • 4
    Adrenal
    Correct
    Wrong
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Answer : 1. "Spleen"
Explanation :

Answer: A) Spleen Explanation: Endocrine glands are glands of the endocrine system that secrete their products, hormones, directly into the blood rather than through a duct.   The major glands of the endocrine system include the pineal gland, pituitary gland, pancreas, ovaries, testes, thyroid gland, parathyroid gland, hypothalamus and adrenal glands.

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