GATE Practice Question and Answer

Q: Lens is made up of which glass 1761 0

  • 1
    Ordinary glass
    Correct
    Wrong
  • 2
    Pyrex glass
    Correct
    Wrong
  • 3
    Flint glass
    Correct
    Wrong
  • 4
    Cobalt glass
    Correct
    Wrong
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Answer : 3. "Flint glass"
Explanation :

Answer: C) Flint glass Explanation:

Q: Book is to chapter as organization is to 1761 0

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Answer :
Explanation :

A book is consists of various chapters, so as the Organization consists of various departments. Therefore if Book is to chapter so organization is to department.   Hence, Book : Chapter :: Organisation : Department.

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 ? 1760 0

  • 1
    24 lit
    Correct
    Wrong
  • 2
    16 lit
    Correct
    Wrong
  • 3
    32 lit
    Correct
    Wrong
  • 4
    8 lit
    Correct
    Wrong
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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: A shopkeeper sells two articles at Rs.1000 each, making a profit of 30% on the first article and a loss of 20% on the second article. Find the net profit or loss that he makes ? 1760 0

  • 1
    0.85 %
    Correct
    Wrong
  • 2
    0.95 %
    Correct
    Wrong
  • 3
    1.0 %
    Correct
    Wrong
  • 4
    1.3 %
    Correct
    Wrong
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Answer : 2. "0.95 %"
Explanation :

Answer: B) 0.95 % Explanation: SP of first article = 1000Profit = 30%CP = (SP)x[100/(100+P)] = 10000/13 SP of second article = 1000Loss = 20%CP = (SP)x[100/(100-L)] = 5000/4 = 1250 Total SP = 2000 Total CP = 10000/13 + 1250 = 2019.23 CP is more than SP, he makes a loss. Loss = CP-SP = 2019.23 - 2000 = 19.23Loss Percent = [(19.23)/(2019.23)]x100 = 0.95 %.

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Answer : 1. "Rs. 9500"
Explanation :

Answer: A) Rs. 9500 Explanation: Given initial investments ratio = 2 : 3 : 4 At the end of 6 months, A invested an amount such that his total capital became equal to B's initial capital investment i.e, upto 6 months A's investment is 2 and after 6 months his invstment is 3 = B's investment Now, Ratio of investment for one year => A : B : C = (2×6 + 3×6) : (3×12) : (4×12) = 30 : 36 : 48 = 5 : 6 : 8 But given B's profit = 3000 => 6 ratio = 3000 For total => 19 ratio = Rs. 9500.

Q: Nucleus of Hydrogen atom consists of 1759 0

  • 1
    2 protons only
    Correct
    Wrong
  • 2
    2 neutrons only
    Correct
    Wrong
  • 3
    1 proton only
    Correct
    Wrong
  • 4
    1 electron only
    Correct
    Wrong
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Answer : 3. "1 proton only"
Explanation :

Answer: C) 1 proton only Explanation: The nucleus of hydrogen consists of only a single proton. Its parts are a single negatively-charged electron that circles a single positively-charged nucleus of the hydrogen atom. The electron is bound to the nucleus by the Coulomb force.

Q: Who has become world's no.1 Junior Badminton player in 2017 ? 1758 0

  • 1
    Chia Hao Lee
    Correct
    Wrong
  • 2
    Lakshya Sen
    Correct
    Wrong
  • 3
    Chirag Sen
    Correct
    Wrong
  • 4
    Karthikey Gulshan Kumar
    Correct
    Wrong
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Answer : 2. "Lakshya Sen"
Explanation :

Answer: B) Lakshya Sen Explanation: India's Lakshya Sen has become the World No 1 Junior Badminton player. He achieved the distinction in the latest rankings of the Badminton World Federation (BWF). Fifteen-year-old is the first shuttler from Uttarakhand to attain the numero uno spot at the international level. Lakshya, who is considered as the shining future star of Indian badminton, moved ahead of Chia Hao Lee of the Chinese Taipei, to attain the top spot. According to BWF current rankings, Lakshya has 16,903 points in eight tournaments he has played in the season. Chia Hao, who is at the second spot, has 16,091 points.

Q: 74.99% of 1299 + 8.98% of 1899 = ? 1757 0

  • 1
    1378
    Correct
    Wrong
  • 2
    1301
    Correct
    Wrong
  • 3
    1212
    Correct
    Wrong
  • 4
    1197
    Correct
    Wrong
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Answer : 3. "1212"
Explanation :

Answer: C) 1212 Explanation: 74.99% of 1299 + 8.98% of 1899 = ?  ? = 75 x 1400100 + 9 x 1800100 ? = 1050 + 162? = 1212.

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