GATE Practice Question and Answer

Q: In a 48 ltr mixture, the ratio of milk and water is 5:3. How much water should be added in the mixture so as the ratio will become 3:5 ? 2105 0

  • 1
    24 lit
    Correct
    Wrong
  • 2
    16 lit
    Correct
    Wrong
  • 3
    32 lit
    Correct
    Wrong
  • 4
    8 lit
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "32 lit"
Explanation :

Answer: C) 32 lit Explanation: Given mixture = 48 lit Milk in it = 48 x 5/8 = 30 lit => Water in it = 48 - 30 = 18 lit Let 'L' lit of water is added to make the ratio as 3:5 => 30/(18+L) = 3/5 => 150 = 54 + 3L => L = 32 lit.

Q: Which of the following is not a Jovian planet? 2105 0

  • 1
    Jupiter
    Correct
    Wrong
  • 2
    Earth
    Correct
    Wrong
  • 3
    Saturn
    Correct
    Wrong
  • 4
    Neptune
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "Earth"
Explanation :

Answer: B) Earth Explanation: Earth is not a Jovian Planet as it is a Terrestrial planet. A planet designated as Jovian is hence a gas giant, composed primarily of hydrogen and helium gas with varying degrees of heavier elements.   Within the Solar System, four Jovian planets exist – Jupiter, Saturn, Uranus, and Neptune. Though these planets vary in terms of size, mass, and composition, they all share certain characteristics that cause them to differ greatly from the terrestrial planets located in the inner Solar System.

Q: Ravi, Anand and Pranay are running a business firm in partnership. What is Anand's share in the profit earned by them? a. Ravi, Anand and Pranay invested the amounts in the ratio of 2 : 4 : 7. b. Pranay's share in the profit is Rs. 8750. 2105 0

  • 1
    Only a is sufficient
    Correct
    Wrong
  • 2
    Neither a nor b is sufficient
    Correct
    Wrong
  • 3
    Only b is sufficient
    Correct
    Wrong
  • 4
    Both a and b sufficient
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Both a and b sufficient"
Explanation :

Answer: D) Both a and b sufficient Explanation: Given Pranay's profit in the share is Rs. 8750 But given that their investments are in the ratio 2:4:7 713×P = 8750 P = 16250 Now Anand's share = 413×16250 = Rs.5000 Thus both staements a and b are sufficient to answer this question.

Q: Modem is used mostly for ? 2104 0

  • 1
    A modern empty memory modules
    Correct
    Wrong
  • 2
    Connecting to internet
    Correct
    Wrong
  • 3
    Mostly for file system
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "Connecting to internet"
Explanation :

Answer: B) Connecting to internet Explanation: A modem is nothing but short for Modulator and Demodulator. It is used mostly for connecting to the internet. A modem is a device or program that enables a computer to transmit data over, for example, telephone or cable lines. Computer information is stored digitally, whereas information transmitted over telephone lines is transmitted in the form of analog waves.

Q: Energy is measured in units called 2104 0

  • 1
    Newtons
    Correct
    Wrong
  • 2
    Watts
    Correct
    Wrong
  • 3
    Joules
    Correct
    Wrong
  • 4
    Ohm/mtr
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Joules"
Explanation :

Answer: C) Joules Explanation: Energy is measured in units called Joules.   Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.   1 Joule  =  107 ergs or 0.7377 foot-pounds.

Q: What is a Common Multiple? 2103 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

If the Multiples for two or more numbers which are Common, then those Multiples are said to be Common Multiples.    For Example : Multiples of 3 are 3, 6, 9, 12, 15, 18, 21, 24, 27, 30,... Multiples of 5 are 5, 10, 15, 20, 25, 30,... Here common multiples of 3 & 5 upto 30 are 15, 30.

Q: The average age of husband, wife and their child 3 years ago was 24 years and that of wife and child 5 years ago was 25 years. The present age of the husband is: 2102 0

  • 1
    21 yrs
    Correct
    Wrong
  • 2
    27 yrs
    Correct
    Wrong
  • 3
    29 yrs
    Correct
    Wrong
  • 4
    31 yrs
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "21 yrs"
Explanation :

Answer: A) 21 yrs Explanation: Sum of ages of husband, wife and child= (24 × 3) + 9 = 81 years Sum of ages of wife and child => 25 × 2 + 10 = 50 + 10 = 60 years Age of husband = 81 - 60 = 21 years.

Q: Bacteria divide by 2102 0

  • 1
    Binary Fission
    Correct
    Wrong
  • 2
    Spirilla
    Correct
    Wrong
  • 3
    RNA
    Correct
    Wrong
  • 4
    Fusion
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Binary Fission"
Explanation :

Answer: A) Binary Fission Explanation: Bacteria divided and reproduce by Binary fission. In this process, the bacterium, which is a single cell, divides into two identical daughter cells. Binary fission begins when the DNA of the bacterium divides into two replicates.

      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