IIT JEE Practice Question and Answer

Q: Agha khan cup is associated with 1851 0

  • 1
    Football
    Correct
    Wrong
  • 2
    Tennis
    Correct
    Wrong
  • 3
    Cricket
    Correct
    Wrong
  • 4
    Hockey
    Correct
    Wrong
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Answer : 4. "Hockey"
Explanation :

Answer: D) Hockey Explanation:

Q: Which of the following is not correct concerning nerves? 1851 0

  • 1
    Axons make up a majority of the matter in a nerve.
    Correct
    Wrong
  • 2
    Nerves are collection of axons of either sensory or motor neurons but not both.
    Correct
    Wrong
  • 3
    Nerves are covered by an outer sheath called the epineurium
    Correct
    Wrong
  • 4
    Nerves consist of parallel bundles of myelinated and nonmyelinated axons.
    Correct
    Wrong
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Answer : 1. "Axons make up a majority of the matter in a nerve."
Explanation :

Answer: A) Axons make up a majority of the matter in a nerve. Explanation: Axons make up a majority of the matter in a nerve is the one statement regarding nerves is incorrect.

Q: What is the primary form of fat in the diet? 1851 0

  • 1
    Lipids
    Correct
    Wrong
  • 2
    Fattyacids
    Correct
    Wrong
  • 3
    Triglycerides
    Correct
    Wrong
  • 4
    All of the above
    Correct
    Wrong
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Answer : 3. "Triglycerides"
Explanation :

Answer: C) Triglycerides Explanation: Triglycerides are the primary form of dietary fat found in the body, and may contain a combination of three fatty acids: saturated fatty acids (SFAs), polyunsaturated fatty acids (PUFAs), or monounsaturated fatty acids (MUFAs).

Q: Logic Challenge 1851 0

  • 1
    40
    Correct
    Wrong
  • 2
    20
    Correct
    Wrong
  • 3
    2
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
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Answer : 3. "2"
Explanation :

Answer: C) 2 Explanation: In the starting it is given that Couple went to the movie and No other went with them. So total members went to movie is only 2.

Q: If A1, A2, A3, A4, ..... A10 are speakers for a meeting and A1 always speaks after, A2 then the number of ways they can speak in the meeting is 1850 0

  • 1
    9!
    Correct
    Wrong
  • 2
    9!/2
    Correct
    Wrong
  • 3
    10!
    Correct
    Wrong
  • 4
    10!/2
    Correct
    Wrong
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Answer : 4. "10!/2"
Explanation :

Answer: D) 10!/2 Explanation: As A1 speaks always after A2, they can speak only in  1st  to 9th places and    A2 can speak in 2nd to 10 the places only when A1 speaks in 1st place    A2 can speak in 9 places the remaining     A3, A4, A5,...A10  has no restriction. So, they can speak in 9.8! ways. i.e   when A2 speaks in the first place, the number of ways they can speak is 9.8!.   When A2 speaks in second place, the number of ways they can speak is  8.8!.   When A2 speaks in third place, the number of ways they can speak is  7.8!. When A2 speaks in the ninth place, the number of ways they can speak is 1.8!       Therefore,Total Number of ways they can  speak = (9+8+7+6+5+4+3+2+1) 8! = 92(9+1)8! = 10!/2

Q: Animal migration on savannas is often governed by 1850 0

  • 1
    Rainfall
    Correct
    Wrong
  • 2
    Distance
    Correct
    Wrong
  • 3
    Reproduction
    Correct
    Wrong
  • 4
    Fire
    Correct
    Wrong
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Answer : 1. "Rainfall"
Explanation :

Answer: A) Rainfall Explanation: Savannas are home to a wide diversity of animals. Many animals of the savanna migrate throughout the year, searching for food and water. Many of the droughts are seasonal and hit one area before another, so animals are constantly following the rains.   Hence, Rain fall is what often governs animal migration on savannas.

Q: If L exceeds K by 30%, then K is less than L by ? 1850 0

  • 1
    14 2/5 %
    Correct
    Wrong
  • 2
    23 1/3 %
    Correct
    Wrong
  • 3
    20 %
    Correct
    Wrong
  • 4
    16 %
    Correct
    Wrong
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Answer : 2. "23 1/3 %"
Explanation :

Answer: B) 23 1/3 % Explanation: K = 100 L = 130130------ 30100------- ? => 23 1/13 %

Q: In a daily morning walk three persons step off together. their steps measure 75 cm, 80 cm and 85 cm respectively. What is the minimum distance each should walk so that thay can cover the distance in complete steps  ? 1850 0

  • 1
    222 m 44 cm
    Correct
    Wrong
  • 2
    204 m
    Correct
    Wrong
  • 3
    201 m 21 cm
    Correct
    Wrong
  • 4
    208 m
    Correct
    Wrong
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Answer : 2. "204 m"
Explanation :

Answer: B) 204 m Explanation: To find the minimum distance, we have to get the LCM of 75, 80, 85 Now, LCM of 75, 80, 85 = 5 x 15 x 16 x 17 = 20400 Hence, the minimum distance each should walk so that thay can cover the distance in complete steps = 20400 cms = 20400/100 = 204 mts.

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