IIT JEE Practice Question and Answer

Q: When the price of whear was increased by 32%, a family reduced its consumption in such a way that the expenditure on wheat was only 10% more than before. If 30 kg per month were consumed before, find the new monthly consumption of family? 2148 0

  • 1
    27 kgs
    Correct
    Wrong
  • 2
    25 kgs
    Correct
    Wrong
  • 3
    24 kgs
    Correct
    Wrong
  • 4
    21 kgs
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "25 kgs"
Explanation :

Answer: B) 25 kgs Explanation: Initial wheat per kg cost be Rs. 100 Then, monthly expenditure of the family = 30 x 100 = 3000 After increase in cost, Let P be new monthly consumption of family. P x 132 = 110/100 x 3000 => P = 25 kg.

Q: Which Temple has been named as the cleanest iconic place in India under the 'Swachhata Hi Seva' Programme ? 2148 0

  • 1
    Vaishno Devi Temple
    Correct
    Wrong
  • 2
    Tirupathi Temple
    Correct
    Wrong
  • 3
    Golden Temple
    Correct
    Wrong
  • 4
    Meenakshi Temple
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Meenakshi Temple"
Explanation :

Answer: D) Meenakshi Temple Explanation: The Meenakshi Temple in Tamil Nadu's Madurai has been named the cleanest iconic place in India under the 'Swachhata Hi Seva' programme.

Q: Find the odd one out of the series ? 35, 48, 54, 63, 81, 105 2148 0

  • 1
    63
    Correct
    Wrong
  • 2
    48
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    81
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "35"
Explanation :

Answer: C) 35 Explanation: 48, 54, 63, 81 and 105 are divisible by 3 but not 35.

Q: (3x + 2) (2x - 5) = ax² + kx + n. What is the value of  a - n + k ? 2147 0

  • 1
    4
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    5
    Correct
    Wrong
  • 4
    3
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "5"
Explanation :

Answer: C) 5 Explanation: (3x + 2) (2x - 5) = ax2+kx+n ...............(1)   But (3x + 2)(2x - 5) = 6x2-11x-10........(2)   so by comparing (1) & (2),   we get a= 6, k= -11 , n= -10   (a - n + k) = 6 + 10 - 11 = 5.

Q: In which year was the Supreme Court of India established? 2147 0

  • 1
    1951
    Correct
    Wrong
  • 2
    1949
    Correct
    Wrong
  • 3
    1950
    Correct
    Wrong
  • 4
    1947
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "1950"
Explanation :

Answer: C) 1950 Explanation: The Supreme Court of India was established in the year 1950.

Q: Most commonly used bleaching agent is 2146 0

  • 1
    Chlorine
    Correct
    Wrong
  • 2
    Alcohol
    Correct
    Wrong
  • 3
    Carbon dioxide
    Correct
    Wrong
  • 4
    Sodium Chloride
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Chlorine"
Explanation :

Answer: A) Chlorine Explanation: Chlorine is the most commonly used bleaching agent.   Bleaching agents are compounds which are used to remove color from substances such as textiles. A bleaching agent is a material that lightens or whitens a substrate through the chemical reaction. The bleaching reactions usually involve oxidative or reductive processes that degrade color systems.

Q: Fuse Wire is Made of? 2146 0

  • 1
    an alloy of Tin and Lead
    Correct
    Wrong
  • 2
    Nickel
    Correct
    Wrong
  • 3
    Copper
    Correct
    Wrong
  • 4
    an alloy of Nickel and Lead
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "an alloy of Tin and Lead"
Explanation :

Answer: A) an alloy of Tin and Lead Explanation: Fuse Wire is Made of an alloy of Tin and Lead.   If too high a current flows, the element rises to a higher temperature and either directly melts, or else melts a soldered joint within the fuse, opening the circuit. Thefuse element is made of an alloy of Tin and Lead to provide stable and predictable characteristics.

  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Both a & b follows"
Explanation :

Answer: C) Both a & b follows Explanation: According to the statement, Government has spoiled financial institutions by appointing bureaucrats as Directors. This means that only those persons should be appointed as Directors who are experts in finance and are acquainted with the financial work of the institute. So, both a and b follows.

      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