IIT JEE Practice Question and Answer

Q: A F Z U G L T _  Find the next letter in the above given letter series? 2294 0

  • 1
    K
    Correct
    Wrong
  • 2
    M
    Correct
    Wrong
  • 3
    O
    Correct
    Wrong
  • 4
    Q
    Correct
    Wrong
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Answer : 3. "O"
Explanation :

Answer: C) O Explanation: Given series is A F Z U G L T _ Starts with A A + 5 letters = F go to end of alphabet= Z Z - 5 letters = U from F go one more to G + 5 letters = L from U go one back to U, T - 5 letters = O   Second Method :: Change the letters to their corresponding number. A=1 B=2 C=3 ... Z=26 A F Z U G L T _ 1 6 26 21 7 12 20 ? Look at the pattern: the 1st and 3rd numbers = 27, 1+26 the 2nd and 4th numbers = 27, 6+21 the 5th and 7th numbers = 27, so the 6 and 8th would also equal 27. 27 - 12 = 15, so the letter is O.

Q: A sold an article to B at 40% profit and B sold it to C at 50% profit, then what will be profit percent with respect to A ? 2293 0

  • 1
    97 %
    Correct
    Wrong
  • 2
    110 %
    Correct
    Wrong
  • 3
    135 %
    Correct
    Wrong
  • 4
    115 %
    Correct
    Wrong
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Answer : 2. "110 %"
Explanation :

Answer: B) 110 % Explanation: % Profit with respect to A = 40 + 50 + (40 x 50)/100 = 90 + 20 = 110 %.

Q: When Ankith saw Sanvi, he recalled, " She is the daughter of the father of my daughter's mother." Who is Sanvi to Ankit ? 2288 0

  • 1
    sister
    Correct
    Wrong
  • 2
    daughter-in-law
    Correct
    Wrong
  • 3
    sister-in-law
    Correct
    Wrong
  • 4
    cousin
    Correct
    Wrong
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Answer : 3. "sister-in-law"
Explanation :

Answer: C) sister-in-law Explanation: Ankit's daughter's mother---Ankit's wife; Ankit's wife's father---Ankit's father-in-law;Father-in-law's daughter--- Ankit's sister-in-law. So, Sanvi is sister-in-law of Ankit.

Q: What is scientific name of "Cotton"  ? 2285 0

  • 1
    Azadhirachta Indica
    Correct
    Wrong
  • 2
    Phaseolies auicus
    Correct
    Wrong
  • 3
    Gossypium Herbaceum
    Correct
    Wrong
  • 4
    Ficus Benghalensis
    Correct
    Wrong
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Answer : 3. "Gossypium Herbaceum"
Explanation :

Answer: C) Gossypium Herbaceum Explanation:

Q: The reflex angle between the hands of a clock at 11:35 is ? 2284 0

  • 1
    137.5 degrees
    Correct
    Wrong
  • 2
    222.5 degrees
    Correct
    Wrong
  • 3
    192.5 degrees
    Correct
    Wrong
  • 4
    330 degrees
    Correct
    Wrong
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Answer : 2. "222.5 degrees"
Explanation :

Answer: B) 222.5 degrees Explanation: Apply the formula for finding the angle:Angle=(30h-(11/2)m( where m stands for minutes and h stands for hours)Hence, 30x11 - 11/2x35 = 330 - 192.5 = 137.5 degreesThe reflex angle = 360 - 192.5 degree = 222.5 degrees.

Q: What is the common ratio of the following geometric sequence? 4, 2, 1, 0.5, 0.25, 0.125,... 2283 0

  • 1
    0.5
    Correct
    Wrong
  • 2
    -1
    Correct
    Wrong
  • 3
    1.5
    Correct
    Wrong
  • 4
    -0.5
    Correct
    Wrong
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Answer : 1. "0.5"
Explanation :

Answer: A) 0.5 Explanation: In mathematics, a geometric progression, also known as a geometric sequence, is a sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number called the common ratio.   Herein the given sequence, 4, 2, 1, 0.5, 0.25, 0.125,... Common Ratio r = 2/4 = 1/2 = 0.5/1 = 0.25/0.5 = 0.125/0.25 == 0.5.

Q: Which of the following has the highest frequency? 2283 0

  • 1
    Cosmic rays
    Correct
    Wrong
  • 2
    X-rays
    Correct
    Wrong
  • 3
    Radio waves
    Correct
    Wrong
  • 4
    Microwaves
    Correct
    Wrong
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Answer : 1. "Cosmic rays"
Explanation :

Answer: A) Cosmic rays Explanation:

Q: Which of the following is not a function of cytoskeleton in a cell ? 2282 0

  • 1
    Maintenance of cell shape and structure
    Correct
    Wrong
  • 2
    Intracellular transport
    Correct
    Wrong
  • 3
    Cell motility
    Correct
    Wrong
  • 4
    Support of the organelle
    Correct
    Wrong
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Answer : 2. "Intracellular transport"
Explanation :

Answer: B) Intracellular transport Explanation: A cytoskeleton is the frame that gives shape to a cell. And also it offers support, and facilitates movement through three main components: microfilaments, intermediate filaments, and microtubules.   The cytoskeleton helps the cell move in its environment and controls the movement of all of the cell's interior workings.

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