IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Manoj and Satya are ranked seventh and eleventh respectively from the top in a class of 31 students. What will be their respective ranks from the bottom in the class ? 1957 0

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    25th and 21st
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  • 2
    26th and 22nd
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  • 3
    20th and 24th
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  • 4
    24th and 20th
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उत्तर : 1. "25th and 21st"
व्याख्या :

Answer: A) 25th and 21st Explanation: Number of students behind Manoj in rank = (31 - 7) = 24. So, Manoj is 25th from the bottom. Number of students behind Satya in rank = (31 - 11) = 20. So, Satya is 21st from the bottom.

प्र: Oscar Awards are conferred annually by 1957 0

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    Academy of Motion Pictures, arts and sciences, USA
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  • 2
    Hollywood Foreign Press Association
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  • 3
    Government of United States
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  • 4
    None
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उत्तर : 1. "Academy of Motion Pictures, arts and sciences, USA"
व्याख्या :

Answer: A) Academy of Motion Pictures, arts and sciences, USA Explanation:

प्र: Statement : Let there be a signboard also indicating the directions and instructions. Assumptions :a) Signboard can be prepared without using any language.b) Signboard is the only effective tool to indicate directions. 1957 0

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    Both a and b are not sufficient
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  • 2
    Only a is sufficient
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  • 3
    Only b is sufficient
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  • 4
    Both a and b are sufficient
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उत्तर : 1. "Both a and b are not sufficient"
व्याख्या :

Answer: A) Both a and b are not sufficient Explanation: The statement doesn't give any clue to the use of language. Hence a is not implicit. b is also not implicit because in the sentence 'only' indicates false meaning.

प्र: Which of the following is part of the axial skeleton? 1955 0

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    Thigh bone
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  • 2
    Shoulder bones
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  • 3
    Vertebral column
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  • 4
    Foot bones
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उत्तर : 3. "Vertebral column"
व्याख्या :

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.

प्र: The complexity of linear search algorithm is 1954 0

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    O(n2)
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  • 2
    O(n log n)
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  • 3
    O(n)
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  • 4
    O(log n)
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उत्तर : 3. "O(n)"
व्याख्या :

Answer: C) O(n) Explanation: The worst case complexity of linear search is O(n).

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उत्तर :
व्याख्या :

Answer 1) dRashmi is the daughter of Amit who is son of Veena.Therefore, Veena is Grand mother of Rashmi. Answer 2) bVandana's sister is Vishal's brother's wife.Therfore, Vishal is Vandana's Brother-in-law. Answer 3) cYashwanth is son of Avinash who is the son of Rohit Agarwal.Therefore, surname of Yashwanth is Agarwal.

प्र: What is a stub network? 1953 0

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    A network with only one entry and no exit point.
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  • 2
    A network that has only one entry and exit point.
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  • 3
    A network with more than one exit point.
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  • 4
    A network with more than one exit and entry point.
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उत्तर : 2. "A network that has only one entry and exit point."
व्याख्या :

Answer: B) A network that has only one entry and exit point. Explanation: A stub network has only one default path to non-local hosts and no outside network knowledge. Non-local stub network traffic uses a single logical path when traveling in and out of the network.   Stub networks are essentially local area networks (LAN) that either do not connect to the outside and relay data packets internally or are dead-end LANs that know of only one network exit. Stub networks may have multiple connections but use one path to single points of destination.   Hence, a stub network is a network that has only one entry and exit point.

प्र: Solve the Puzzle? 1952 0

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उत्तर :
व्याख्या :

From the assumption and trial and error method, last three digits sum must leave the same digit as the answer. It is possible only if the answer must be units digit number leaving tens digit as carry. And the possible 3rd digit is 5. Since 5 + 5 + 5 = 15  Now, 2nd step is  1 + x + x + x = 5 => 3x = 4 It is possible with x = 8. 8 + 8 + 8 + 1 = 25 leaving 2 as carry.  Now, 3rd step is 2 + x + x + x = 5 => x = 1   Hence, the three dgits are 1, 8, 5. 185 + 185 + 185 = 555.

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