IIT JEE Practice Question and Answer

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Answer : 3. "Rs. 10664.15"
Explanation :

Answer: C) Rs. 10664.15 Explanation: Profit received by Chinna as working partner = 14.5% of Rs. 19600 = 14.5x19600/100 = Rs. 2842 Balance in profit = 19600-2842 = Rs. 16758 Ratio of investment of Chinna & Munna = 80,000 : 1,40,000 = 4 : 7 Hence share of Chinna in investment = 4x16758/100 = Rs. 6093.85 Therefore, Share of Munna = 19600 - 2842 - 6093.85 = Rs. 10664.15

Q: Which of the following is part of the axial skeleton? 2222 0

  • 1
    Thigh bone
    Correct
    Wrong
  • 2
    Shoulder bones
    Correct
    Wrong
  • 3
    Vertebral column
    Correct
    Wrong
  • 4
    Foot bones
    Correct
    Wrong
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Answer : 3. "Vertebral column"
Explanation :

Answer: C) Vertebral column Explanation: The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate. In the human skeleton, it consists of 80 bones and is composed of six parts; the skull bones, the ossicles of the middle ear, the hyoid bone, the rib cage, sternum and the vertebral column.   Bones of shoulder, thigh and foot are the part of appendicular skeleton.     Hence, Vertebral column is the part of axial skeleton.

Q: Which statement is NOT true about polymers? 2222 0

  • 1
    Polymers are large molecules composed of small monomeric units
    Correct
    Wrong
  • 2
    Polymes are macromolecules
    Correct
    Wrong
  • 3
    Polymers are complex molecules composed of random sequences of atoms
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 3. "Polymers are complex molecules composed of random sequences of atoms"
Explanation :

Answer: C) Polymers are complex molecules composed of random sequences of atoms Explanation: Polymers are complex molecules composed of random sequences of atoms is the only statement which is not true regarding polymers.

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Answer : 2. "535"
Explanation :

Answer: B) 535 Explanation: The number of points of intersection of 37 lines is C237. But 13 straight lines out of the given 37 straight lines pass through the same point A.   Therefore instead of getting C213 points, we get only one point A. Similarly 11 straight lines out of the given 37 straight lines intersect at point B. Therefore instead of getting C211 points, we get only one point B.    Hence the number of intersection points of the lines is C237-C213-C211 +2 = 535

Q: Find the odd man out of the following number sequence? 3, 5, 13, 43, 167 2221 0

  • 1
    167
    Correct
    Wrong
  • 2
    43
    Correct
    Wrong
  • 3
    13
    Correct
    Wrong
  • 4
    5
    Correct
    Wrong
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Answer : 1. "167"
Explanation :

Answer: A) 167 Explanation: The given number series is 3, 5, 13, 43, 167 3 3 x 1 + 2 = 5 5 x 2 + 3 = 13 13 x 3 + 4 = 43 43 x 4 + 5 = 177 (not equal to 167)   Hence, the odd number in the given number sequence is 167.

Q: What is the next number in this series ?  4, 6, 12, 18, 30, 42, 60, ? 2220 0

  • 1
    71
    Correct
    Wrong
  • 2
    72
    Correct
    Wrong
  • 3
    73
    Correct
    Wrong
  • 4
    69
    Correct
    Wrong
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Answer : 2. "72"
Explanation :

Answer: B) 72 Explanation: With close observation, you will note that each number in the list is in the middle of two prime numbers. Thus: 4 is in the middle of 3 and 5, 6 is in the middle of 5 and 7, 12 is in the middle of 11 and 13, 18 is in the middle of 17 and 19, 30 is in the middle of 29 and 31. 42 is in the middle of 41 and 43, 60 is in the middle of 59 and 61. Therefore, the next number would be the one that is in the middle of the next two prime numbers, which is 72 (which is in the middle of 71 and 73).

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Answer : 2. "2"
Explanation :

Answer: B) 2 Explanation: Given number is 14278359As given 1st and 5th digits, 2nd & 6th, 3rd & 7th and 4th & 8th digits are to to be interchanged.Therfore, the rearranged number is 83591427Then, the second digit from the right end is 2.

Q: The book " The Vijay Mallya Story " has been written by _____ 2217 0

  • 1
    Vijay Mallya
    Correct
    Wrong
  • 2
    Gopinath
    Correct
    Wrong
  • 3
    Giriprakash
    Correct
    Wrong
  • 4
    Siddharth Mallya
    Correct
    Wrong
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Answer : 3. "Giriprakash"
Explanation :

Answer: C) Giriprakash Explanation:

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