IIT JEE Practice Question and Answer

Q: What happens during the bootstrap process? 1010 0

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Answer :
Explanation :

A bootstrap is the process of starting up a computer. It also refers to the program that initializes the operating system (OS) during start-up. It referred to a bootstrap load button that was used to initiate a hardwired bootstrap program, or smaller program that executed a larger program such as the OS.

Q: A, B and C started a business where their initial capital was in the ratio of 2:3:4. At the end of 6 months, A invested an amount such that his total capital became equal to C's initial capital investment. If the annual profit of B is Rs. 3000 then what is the total profit  ? 1007 0

  • 1
    Rs. 8,640
    Correct
    Wrong
  • 2
    Rs. 9,850
    Correct
    Wrong
  • 3
    Rs. 10,000
    Correct
    Wrong
  • 4
    Rs. 11,220
    Correct
    Wrong
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Answer : 3. "Rs. 10,000"
Explanation :

Answer: C) Rs. 10,000 Explanation: Ratio of investments of A, B & C = 2×6+4×6 : 3×12 : 4×12 = 36 : 36 : 48 = 6 : 6 : 8 But given that the annual profit of B is Rs. 3000 => 6 ratio = 3000 Then for the total annual profit of partners is 20 ratio = 3000 x 20/6 = 10,000.

Q: A cowboy arrives in town on Friday. He stays for 3 days and then leaves on Friday. How is that possible? 1006 0

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Answer :
Explanation :

You will get the answer in the riddle itself, if you read the riddle carefully. The riddle says "A cowboy arrives in town on Friday." So Friday is the name of the horse on which he comes. Hence, the only possibility is he arrives on the horse friday on Tuesday, stays for 3 days and leaves on the same horse on Friday.

Q: Name an eminent cartoonist who created the comic book character like Chacha Chaudary and Sabu who died in 2014 ? 1005 0

  • 1
    Angela Nemeth
    Correct
    Wrong
  • 2
    Pran Kumar Sharma
    Correct
    Wrong
  • 3
    Madhukar Singh
    Correct
    Wrong
  • 4
    DP Yadav
    Correct
    Wrong
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Answer : 2. "Pran Kumar Sharma"
Explanation :

Answer: B) Pran Kumar Sharma Explanation:

Q: When a number is divided by 138 the remainder is 26. What will be the remainder if the same number is divided by 23 ? 1005 0

  • 1
    4
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 3. "3"
Explanation :

Answer: C) 3 Explanation: Number = quotient x divisor + remainder;so, herenumber = 138 k + 26=> (23 x 6k) + (23+3)=> 23(6k+1)+3so, remainder is 3.

Q: What part of the body controls balance? 1005 0

  • 1
    Cerebrum
    Correct
    Wrong
  • 2
    Cerebellum
    Correct
    Wrong
  • 3
    Medulla oblangata
    Correct
    Wrong
  • 4
    Amygdala
    Correct
    Wrong
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Answer : 2. "Cerebellum"
Explanation :

Answer: B) Cerebellum Explanation: The cerebellum is a small part of the brain positioned at the back of the head, where it meets the spine, which acts as the body's movement and balance control centre.     It's a lot smaller than the cerebrum at only 1/8 of its size. But it's a very important part of the brain.

Q: Gases in the atmosphere and their percentages? 1005 0

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Answer :
Explanation :

The air around us is a mixture of gases, mainly nitrogen and oxygen, but containing much smaller amounts of water and other gases. Earth's atmosphere is composed of many gases. Their percentages by volume is given by::  78% Nitrogen, 21% Oxygen, 0.9% Argon, and 0.03% Carbon dioxide  And very small percentages of other elements.

Q: One-third of the boys and one-half of the girls of a college participated in a sport. If the number of participating students is 300, out of which 100 are boys. What is the total number of students in the college ? 1005 0

  • 1
    550
    Correct
    Wrong
  • 2
    575
    Correct
    Wrong
  • 3
    625
    Correct
    Wrong
  • 4
    700
    Correct
    Wrong
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Answer : 4. "700"
Explanation :

Answer: D) 700 Explanation: Let number of boys = B Number of girls = G From the given data, 1B/3 + 1G/2 = 300 But given B/3 = 100 => B = 300 G/2 = 300 - 100 G = 200 x 2 => G = 400 Therefore, total number of students in the college = B + G = 700.

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