GRE Practice Question and Answer

Q: Which results in an increase in power? 1249 0

  • 1
    doing more work in less time.
    Correct
    Wrong
  • 2
    doing less work in more time.
    Correct
    Wrong
  • 3
    doing less work in less time.
    Correct
    Wrong
  • 4
    doing more work in more time.
    Correct
    Wrong
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Answer : 1. "doing more work in less time."
Explanation :

Answer: A) doing more work in less time. Explanation: Doing more work in less time, results in an increase in power to do a work.

Q: A lady took loan from a bank at the rate of 12% p.a. simple interest. After 3 years she had to pay Rs. 5400 interest only for the period. The principal amount borrowed by her was : 1234 0

  • 1
    Rs. 15,000
    Correct
    Wrong
  • 2
    Rs. 1,50,000
    Correct
    Wrong
  • 3
    Rs. 1500
    Correct
    Wrong
  • 4
    Rs. 1,62,000
    Correct
    Wrong
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Answer : 1. "Rs. 15,000"
Explanation :

Answer: A) Rs. 15,000 Explanation: Principal = Rs.(100 x 5400)/(12 x 3)= Rs. 15000.

Q: What is 16 bit? 1230 0

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Answer :
Explanation :

Anything larger and the computer would need to break the number into smaller pieces.   16-bit is a computer hardware device or software program capable of transferring 16 bits of data at a time. Today, 16-bit hardware and software has been replaced by 32-bit and 64-bit alternatives, which give the computer more memory to work with; increasing overall performance.   For example, early computer processors (e.g., 8088 and 80286) were 16-bit processors, meaning they were capable of working with 16-bit binary numbers (decimal number up to 65,535).

Q: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 4 or 15 ? 1218 0

  • 1
    6/19
    Correct
    Wrong
  • 2
    3/10
    Correct
    Wrong
  • 3
    7/10
    Correct
    Wrong
  • 4
    6/17
    Correct
    Wrong
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Answer : 2. "3/10"
Explanation :

Answer: B) 3/10 Explanation: Here, S = {1, 2, 3, 4, ...., 19, 20}=> n(s) = 20Let E = event of getting a multiple of 4 or 15 =multiples od 4 are {4, 8, 12, 16, 20}And multiples of 15 means multiples of 3 and 5= {3, 6 , 9, 12, 15, 18, 5, 10, 15, 20}.= the common multiple is only (15).=> E = n(E)= 6Required Probability = P(E) = n(E)/n(S) = 6/20 = 3/10.

Q: Which international organization has declared 2017 as the “International Year of Sustainable Tourism for Development”? 1210 0

  • 1
    Asian Development Bank (AD
    Correct
    Wrong
  • 2
    B) World Trade Organisation (WTO)
    Correct
    Wrong
  • 3
    United Nations (UN)
    Correct
    Wrong
  • 4
    International Monetary Fund (IMF)
    Correct
    Wrong
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Answer : 3. "United Nations (UN)"
Explanation :

Answer: C) United Nations (UN) Explanation: The United Nations (UN) has declared 2017 as the "International Year of Sustainable Tourism for Development" to celebrate and advance the commitment of the tourism division to building a superior world.The International Year aims to support a change in policies, business practices and consumer behavior towards a more sustainable tourism sector that can contribute effectively to the Sustainable Development Goals (SDGs).

Q: There are 3 sections with 5 questions each. If four questions are selected from each section, the chance of getting different questions is ? 1209 0

  • 1
    1000
    Correct
    Wrong
  • 2
    625
    Correct
    Wrong
  • 3
    525
    Correct
    Wrong
  • 4
    125
    Correct
    Wrong
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Answer : 4. "125"
Explanation :

Answer: D) 125 Explanation: Methods for selecting 4 questions out of 5 in the first section = 5 x 4 x 3 x 2 x 1/4 x 3 x 2 x 1 = 5. Similarly for other 2 sections also i.e 5 and 5 So total methods = 5 x 5 x 5 = 125.

Q: I have three eyes but only one leg. I still close one even if you beg.  What am I? 1180 0

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Answer :
Explanation :

A traffic light. It has three 'eyes' (the red, orange and green lights) and the leg is the pole holding it up. Many people beg the light to stay green as they’re approaching.

Q: What goes in the water black and comes out red 1161 0

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Answer :
Explanation :

A Lobster is one which goes black in water and comes out red.

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