GATE Practice Question and Answer

Q: Shamma lends Rs.40,000 to two of her friends. She gives Rs.24,000 to the first at 8% p.a. simple interest. Shamma wants to make a profit of 10% on the whole. The simple interest rate at which she should lend the remaining sum of money to the second friend is: 2030 0

  • 1
    13%
    Correct
    Wrong
  • 2
    8.5%
    Correct
    Wrong
  • 3
    9.5%
    Correct
    Wrong
  • 4
    11.25%
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "13%"
Explanation :

Answer: A) 13% Explanation: The ratio of money she lended is 24000 : 16000 = 3 : 2 Let the rate of interest be R%   8%                   R%                 10   3          :           2   R = 13%.

Q: DNA can be found in what Organelles? 2029 0

  • 1
    Chloroplasts and Mitichondria
    Correct
    Wrong
  • 2
    Nucleus and Ribosomes
    Correct
    Wrong
  • 3
    Ribosomes and Mitochondria
    Correct
    Wrong
  • 4
    Endoplasmic Reticulum and Nucleus
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Chloroplasts and Mitichondria"
Explanation :

Answer: A) Chloroplasts and Mitichondria Explanation: DNA can be found in 3 Organelles namely Nucleus, Mitochondria in animals and Chloroplasts in plants.

Q: The average age of a couple is 24 years when they were married five years ago but now the average age of the husband, wife and child is 20 years(the child was born during the interval). What is the present age of the child ? 2029 0

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

Answer : 1. "2 yrs"
Explanation :

Answer: A) 2 yrs Explanation: 29 x 2 = 5820 x 3 = 60         -----------               2 years Therefore, the age of child is 2 years.

Q: What has four wheels and flies? 2028 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

Garbage truck. It’s true, a garbage truck has 4 wheels and lots of flies because flies like garbage. Here flies means insects like houseflies, mosquitoes, ... It doesn't mean that it flies in the air.

Q: Which statement is NOT true about polymers? 2028 0

  • 1
    Polymers are large molecules composed of small monomeric units
    Correct
    Wrong
  • 2
    Polymes are macromolecules
    Correct
    Wrong
  • 3
    Polymers are complex molecules composed of random sequences of atoms
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Polymers are complex molecules composed of random sequences of atoms"
Explanation :

Answer: C) Polymers are complex molecules composed of random sequences of atoms Explanation: Polymers are complex molecules composed of random sequences of atoms is the only statement which is not true regarding polymers.

Q: Given that 100.48 = x,  100.70 = y and xz = y2,  then the value of z is close to ___ ? 2027 0

  • 1
    3.7
    Correct
    Wrong
  • 2
    2.7
    Correct
    Wrong
  • 3
    3.6
    Correct
    Wrong
  • 4
    2.9
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "2.9"
Explanation :

Answer: D) 2.9 Explanation: xz = y2        10(0.48z) = 10(2 x 0.70) = 101.40  0.48z = 1.40  z = 140/18 = 35/12 = 2.9 (approx.)

Q: In a class there are certain no. of boys and girls. If 15 girls are absent then no. of boys will be twice that of girls. If 45 boys are absent then girls strength will be 5 times that of boys. Find number of boys actually present ? 2026 0

  • 1
    40
    Correct
    Wrong
  • 2
    50
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "50"
Explanation :

Answer: B) 50 Explanation: 15 girls are absent => b = 2(g-15)...... eqn...(1) 45 boys are absent => g - 15 = 5(b-45).....eqn...(2) => g = 5(b-45) + 15 => b = 2((5(b-45)+15)-15) => b = 2(5b - 225 + 15 - 15) => b = 2(5b-225) => b = 10b - 450 => 9b = 450 => b = 50 so from equation(2) g - 15 = 5(b - 45) => g - 15 = 5(50-45) => g - 15 = 5(5) => g = 25 + 15 => g = 40 Therefore, the number of boys = 50 and girls = 40

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

It is said by Lord Polonius. It means do not lend or borrow money from a friend, because if you do so, you will lose both your friend and your money. If you lend, he will avoid paying back, and if you borrow you will fall out of your savings, as you turn into a spendthrift, and face humiliation.

      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