GRE Practice Question and Answer

Q: The more there is the less you see. What is that? 1667 0

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Answer :
Explanation :

It is Darkness. If it is more darkness outside, we can see less in that.

Q: What should be replaced in the place of '?' in the following series ? JAK, KBL, LCM, MDN, ? 1667 0

  • 1
    MEN
    Correct
    Wrong
  • 2
    NEM
    Correct
    Wrong
  • 3
    NEO
    Correct
    Wrong
  • 4
    OEP
    Correct
    Wrong
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Answer : 3. "NEO"
Explanation :

Answer: C) NEO Explanation: This is an alternating series in alphabetical order. The middle letters follow the order ABCDE. The first and third letters are alphabetical beginning with J. The third letter is repeated as a first letter in each subsequent three-letter segment.

Q: Mahesh bought 100 kg of rice for Rs. 1040 and sold it at a loss of as much money as he received for 30 kg rice. At what price did he sell the rice? 1664 0

  • 1
    Rs. 7.46/kg
    Correct
    Wrong
  • 2
    Rs. 8/kg
    Correct
    Wrong
  • 3
    Rs. 8.74/kg
    Correct
    Wrong
  • 4
    Rs. 8.56/kg
    Correct
    Wrong
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Answer : 2. "Rs. 8/kg"
Explanation :

Answer: B) Rs. 8/kg Explanation: Let the selling price of the rice = Rs.P/kg Now, according to the question, 1040 - 100p = 30p => p = 8/kg   Hence, the selling price of the rice = Rs. 8/kg

Q: I go around and in the house but never touches the house. What am I? 1664 0

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Answer :
Explanation :

Te Sun. From the time rising it goes around the house upto sunset, but never touches the house.

Q: Change Active Voice to Passive Voice? Active voice : Has he completed the work? 1664 0

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Answer :
Explanation :

Passive Voice : Has the work been completed by him?   Rules in changing from Active voice to Passive voice : 1. Identify the subject, the verb and the object: S+V+O 2. Change the object into subject 3. Put the suitable helping verb or auxiliary verb 4. Change the verb into past participle of the verb 5. Add the preposition "by" 6. Change the subject into object.

Q: Who is the 45th President of United States ? 1659 0

  • 1
    Hillary Clinton
    Correct
    Wrong
  • 2
    Barack Obama
    Correct
    Wrong
  • 3
    George W. Bush
    Correct
    Wrong
  • 4
    Donald Trump
    Correct
    Wrong
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Answer : 4. "Donald Trump"
Explanation :

Answer: D) Donald Trump Explanation: Donald John Trump (born June 14, 1946) is an American businessman, television personality, politician, and the 45th President of the United States.

Q: What causes brownian motion in colloids? 1658 0

  • 1
    coagulation of particles and the dispersed phase
    Correct
    Wrong
  • 2
    erratic flashes of light
    Correct
    Wrong
  • 3
    molecules of the dispersion medium colliding with dispersed phase particles
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 3. "molecules of the dispersion medium colliding with dispersed phase particles"
Explanation :

Answer: C) molecules of the dispersion medium colliding with dispersed phase particles Explanation: When their is a colloid in the solution, then it will show the Brownian movement, such as dust particle in the air will show the Brownian movement.   Hence, Brownian movement arises due to the impact of the molecules of the dispersion medium with the colloidal particles. It has been postulated that the impact of the molecules of dispersion medium on the colloidal particles are unequal.   This leads to the zig-zag (random) motion of the colloidal particles.

Q: If the age of father is 4 years greater than the mother and 28 years greater than the son,then what is the age of the father? which one should be used to calculate the age ? 1658 0

  • 1
    mother/son = Non-prime number
    Correct
    Wrong
  • 2
    mother/son = Perfect square number A) only A alone is sufficient B) only B alone is sufficient
    Correct
    Wrong
  • 3
    both A and B are required
    Correct
    Wrong
  • 4
    A) only A alone is sufficient B) only B alone is sufficient C) both A and B are required D)
    Correct
    Wrong
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Answer : 2. "mother/son = Perfect square number A) only A alone is sufficient B) only B alone is sufficient"
Explanation :

Answer: B) only B alone is sufficient Explanation: For the given problem there are three possiblities.Father's age can be = 36, 31, 29Mother's age = 32, 27, 25Son's age = 8, 3, 1. By using only B it can be calculated.

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