IIT JEE Practice Question and Answer

Q: Eye Test Logical Challenge 2567 0

  • 1
    15
    Correct
    Wrong
  • 2
    14
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    17
    Correct
    Wrong
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Answer : 1. "15"
Explanation :

Answer: A) 15 Explanation:

Q: Find the missing number in the given number series? 514, 470, ?, 415, 404 2565 0

  • 1
    441
    Correct
    Wrong
  • 2
    437
    Correct
    Wrong
  • 3
    426
    Correct
    Wrong
  • 4
    420
    Correct
    Wrong
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Answer : 2. "437"
Explanation :

Answer: B) 437 Explanation: Given number series is 514   470   ?   415   404       Here the pattern it follows is   514   514 - 44 = 470   470 - 33 = 437   437 - 22 = 415   415 - 11 = 404   Hence, the missing number in the given number series is 437.

Q: Find the least number with which 16200 should be multiplied, to make it a perfect cube ? 2562 0

  • 1
    45
    Correct
    Wrong
  • 2
    48
    Correct
    Wrong
  • 3
    360
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
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Answer : 1. "45"
Explanation :

Answer: A) 45 Explanation: 16200 = 23×34×52   A perfect cube has a property of having the indices of all its prime factors divisible by 3.   Required number = 32×5 = 9x5 = 45.

Q: Which of the following is not an Output device? 2562 0

  • 1
    Scanner
    Correct
    Wrong
  • 2
    Moniter
    Correct
    Wrong
  • 3
    Printer
    Correct
    Wrong
  • 4
    Speakers
    Correct
    Wrong
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Answer : 1. "Scanner"
Explanation :

Answer: A) Scanner Explanation:

Q: O_er_t_o_ Complete the missing letters of the given word. 2561 0

  • 1
    Ordination
    Correct
    Wrong
  • 2
    Oterration
    Correct
    Wrong
  • 3
    Ovvulation
    Correct
    Wrong
  • 4
    Operation
    Correct
    Wrong
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Answer : 4. "Operation"
Explanation :

Answer: D) Operation Explanation:

Q: Ayush was born two years after his father's marriage. His mother is five years younger than his father but 20 years older than Ayush who is 10 years old. At what age did the father get married ? 2559 0

  • 1
    25 years
    Correct
    Wrong
  • 2
    24 years
    Correct
    Wrong
  • 3
    23 years
    Correct
    Wrong
  • 4
    22 years
    Correct
    Wrong
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Answer : 3. "23 years"
Explanation :

Answer: C) 23 years Explanation: Ayush's present age = 10 years.His mother's present age = (10 + 20) years = 30 years.Ayush's father's present age = (30 + 5) years = 35 years.Ayush's father's age at the time of Ayush's birth = (35 - 10) years = 25 years. Therefore Ayush's father's age at the time of marriage = (25 - 2) years = 23 years.

Q: Impulse conduction is fastest in neurons that are 2559 0

  • 1
    Myelinated
    Correct
    Wrong
  • 2
    Motor
    Correct
    Wrong
  • 3
    Unmyelinated
    Correct
    Wrong
  • 4
    Sensory
    Correct
    Wrong
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Answer : 1. "Myelinated"
Explanation :

Answer: A) Myelinated Explanation: A myelinated nerve can be found int the brain or spinal cord as well as the peripheral nervous system, it is white and is surrounded by schwann cells or oligodendrocytes.

Q: Which of the following is not a macronutrient? 2558 0

  • 1
    Carbohydrates
    Correct
    Wrong
  • 2
    Calcium
    Correct
    Wrong
  • 3
    Chlorine
    Correct
    Wrong
  • 4
    Proteins
    Correct
    Wrong
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Answer : 3. "Chlorine"
Explanation :

Answer: C) Chlorine Explanation: Nutrients that are needed in large amounts are called Macronutrients.   There are three macronutrients required by humans: 1. carbohydrates (sugar), 2. lipids (fats), and 3. proteins.   Each of these macronutrients provides energy in the form of calories.   Some other macronutrients are: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), sodium (Na).

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