GRE Practice Question and Answer

Q: The edge of three cubes of metal is 3 m, 4 m and 5 m. They are melted and formed into a single cube. Find the edge of the new cube  ? 949 0

  • 1
    15 m
    Correct
    Wrong
  • 2
    4 m
    Correct
    Wrong
  • 3
    6 m
    Correct
    Wrong
  • 4
    9 m
    Correct
    Wrong
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Answer : 3. "6 m"
Explanation :

Answer: C) 6 m Explanation: The edge of the new cube is = 33+43+53 = a3 => a = 6 m.

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 ? 947 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”? 940 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: 3/8 as a decimal 935 0

  • 1
    1.375
    Correct
    Wrong
  • 2
    2.375
    Correct
    Wrong
  • 3
    0.375
    Correct
    Wrong
  • 4
    3.75
    Correct
    Wrong
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Answer : 3. "0.375"
Explanation :

Answer: C) 0.375 Explanation: Expressing 3/8 as a decimal fraction: We can convert 3/8 into a decimal fraction by just dividing 3 by 8 or making 3 into 8 parts. Then, it is 3/8 = 0.375 as a decimal fraction.   Other Method:: 3/8 as a Decimal : In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple. Now to make 8 into 1000, we multiply numerator and denominator with 125   => (3 x 125)/(8 x 125) = 375/1000 = 0.375.

Q: What is 16 bit? 928 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: What is 12 S of the Z? 928 0

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Answer :
Explanation :

12 S of Z represents 12 Signs of the Zodiac.   It is similar to the 1. 52 W in a Y        -  52 weeks in a year 2. 3 H in a C          -  3 Hands in a Clock 3. 3600 S in an H   -  3600 Seconds in an Hour 4. 5 O in the W      -   5 Oceans in the World

Q: What tastes better than it smells? 925 0

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Answer :
Explanation :

Tongue. Yes tongue tastes better than it smells as it can't smell.

Q: One boat is overtaking another. Which boat must give way? 923 0

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Answer :
Explanation :

The boat which is overtaken must give way to the boat which is overtaking.

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