IIT JEE Practice Question and Answer

Q: The sides of a right-angled triangle are 12 cm, 16 cm, 20 cm respectively. A new right angle Δ is made by joining the midpoints of all the sides. This process continues for infinite then calculate the sum of the areas of all the triangles so made. 2083 0

  • 1
    312 sq.cm
    Correct
    Wrong
  • 2
    128 sq.cm
    Correct
    Wrong
  • 3
    412 sq.cm
    Correct
    Wrong
  • 4
    246 sq.cm
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "128 sq.cm"
Explanation :

Answer: B) 128 sq.cm Explanation: Area =    = 96   Sum of Area =

Q: The Most Important Ore of Aluminium is 2083 0

  • 1
    Calamine
    Correct
    Wrong
  • 2
    Monazite
    Correct
    Wrong
  • 3
    Magnetite
    Correct
    Wrong
  • 4
    Bauxite
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Bauxite"
Explanation :

Answer: D) Bauxite Explanation:

Q: 14 persons are seated around a circular table. Find the probability that 3 particular persons always seated together. 2082 0

  • 1
    11/379
    Correct
    Wrong
  • 2
    21/628
    Correct
    Wrong
  • 3
    24/625
    Correct
    Wrong
  • 4
    26/247
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "24/625"
Explanation :

Answer: C) 24/625 Explanation: Total no of ways = (14 – 1)! = 13! Number of favorable ways = (12 – 1)! = 11!   So, required probability = 11!×3!13! = 39916800×66227020800 = 24625

Q: What is one way to appeal to ethos? 2080 0

  • 1
    By referencing trusted sources
    Correct
    Wrong
  • 2
    By starting with a specific argument
    Correct
    Wrong
  • 3
    By creating a repetitive pattern
    Correct
    Wrong
  • 4
    By choosing descriptive nouns
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "By creating a repetitive pattern"
Explanation :

Answer: C) By creating a repetitive pattern Explanation: The Three Rhetorical Appeals is an argument made by Aristotle in which he states that there are three elements to the art of persuasion: ethos, pathos and logos.   Ethos is the ethical appeal, which intends to persuade the audience of the author's credibility/character. Pathos is the emotional appeal, which intends to persuade the audience by appealing to their emotions. Logos is the logical appeal, which intends to persuade the audience using reason and logic.   In order to make an ethos, or ethical appeal, convince the audience that you are a reliable, intelligent and can be trusted. Here is how you can achieve this: 1. Provide personal experience or know someone whose experience can relate to what you are talking about 2. Use detailed and recent research in your argument 3. Use professional and appropriate vocabulary 4. Avoid sounding overly emotional 5. Only use first person when talking about personal experience; otherwise, write in third person.

Q: A line is an undefined term because it 2080 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

A line is an undefined term because of it :   1. Contains an infinite number of points 2. can be used to create other geometric shapes 3. is a term that does not have a formal definition   In Geometry, unless it's stated, a line will extend in one dimension and goes on forever in both ways.

Q: Which one of the following scripts of ancient India was written from right to left ? 2080 0

  • 1
    Brahmi
    Correct
    Wrong
  • 2
    Kharoshti
    Correct
    Wrong
  • 3
    Nandnagari
    Correct
    Wrong
  • 4
    Sharada
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "Kharoshti"
Explanation :

Answer: B) Kharoshti Explanation: The Kharoshi script is an ancient script used by the ancient Gandhara culture of South Asia primarily in modern-day Afghanistan and Pakistan to write the Gandhari language (a dialect of Prakrit) and the Sanskrit language.

Q: The ratio of investments of two partners A and B is 7:5 and the ratio of their profits is 7:10. If A invested the money for 5 months, find for how much time did B invest the money ? 2080 0

  • 1
    11 months
    Correct
    Wrong
  • 2
    9 months
    Correct
    Wrong
  • 3
    7 months
    Correct
    Wrong
  • 4
    10 months
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "10 months"
Explanation :

Answer: D) 10 months Explanation: 7x5: 5xk = 7:10k = 10 months

  • Show AnswerHide Answer
  • Workspace

Answer : 2. "23"
Explanation :

Answer: B) 23 Explanation: If he wants to give these books equally to 2 of his friends, then 1 book will remain, it means possible number of books = 15,17,19,21,23,25,27,29If he wants to give these books equally to 3 of his friends, then 2 books will remain, it means possible number of books = 17,20,23,26,29If he wants to give these books equally to 4 of his friends, then 3 book will remain, it means possible number of books = 15,19,23,27common number is only 23 so it will be answer

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully