GRE Practice Question and Answer

Q: CK169JROS2419TXKM??PV 1733 0

  • 1
    14,21
    Correct
    Wrong
  • 2
    21,14
    Correct
    Wrong
  • 3
    56,84
    Correct
    Wrong
  • 4
    84,56
    Correct
    Wrong
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Answer : 2. "21,14"
Explanation :

Answer: B) 21,14 Explanation: Putting A=1, B=2, C=3,..., M=13,....,X=24,Y=25, Z=26, we have :        JR = J + R2 + 2 = 10 + 18 2 + 2 = 16       CK = C + K2 + 2 =  3 + 112 + 2 = 9       TX = T + X2+ 2 = 20 + 242 + 2 = 24       OS = O + S2 + 2 = 15 + 192 + 2 = 19        So, the missing numbers are :       21 and 14       Hence, the answer is (b).

Q: Fill in the blank with an appropriate word from the following options. Usually the room tariff in this hotel is higher. At present, it is low because of the------- season. 1726 0

  • 1
    Peak
    Correct
    Wrong
  • 2
    Off
    Correct
    Wrong
  • 3
    Down
    Correct
    Wrong
  • 4
    Slow
    Correct
    Wrong
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Answer : 2. "Off"
Explanation :

Answer: B) Off Explanation: Season can be either at peak or off.Presently it is low, that is because of OFF season.

Q: What is the next number in series? 10, 9, 60, 90, 70, 66, ? 1724 0

  • 1
    73
    Correct
    Wrong
  • 2
    19
    Correct
    Wrong
  • 3
    96
    Correct
    Wrong
  • 4
    22
    Correct
    Wrong
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Answer : 3. "96"
Explanation :

Answer: C) 96 Explanation: ten = 3(number of letters)nine = 4(number of letters)sixty = 5(number of letters)ninety = 6(number of letters)seventy = 7(number of letters)sixtysix = 8(number of letters)ninetysix=96(number of letters) Then, likwise choose the number which has 9 letters in its Spelling.

Q: The top and bottom of a tower were seen to be at angles of depression 30° and 60° from the top of a hill of height 100 m. Find the height of the tower ? 1717 1

  • 1
    42.2 mts
    Correct
    Wrong
  • 2
    33.45 mts
    Correct
    Wrong
  • 3
    66.6 mts
    Correct
    Wrong
  • 4
    58.78 mts
    Correct
    Wrong
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Answer : 3. "66.6 mts"
Explanation :

Answer: C) 66.6 mts Explanation: From above diagramAC represents the hill and DE represents the tower Given that AC = 100 m angleXAD = angleADB = 30° (∵ AX || BD ) angleXAE = angleAEC = 60° (∵ AX || CE) Let DE = h Then, BC = DE = h, AB = (100-h) (∵ AC=100 and BC = h), BD = CE tan 60°=AC/CE => √3 = 100/CE =>CE = 100/√3 ----- (1) tan 30° = AB/BD => 1/√3 = 100−h/BD => BD = 100−h(√3)∵ BD = CE and Substitute the value of CE from equation 1 100/√3 = 100−h(√3) => h = 66.66 mts The height of the tower = 66.66 mts.

Q: How many balls? Number of balls in the figure... 1716 0

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Answer :
Explanation :

You have to actually count all the balls in the pyramid.Simple way is to count the balls in each level. So lower most level lets say 1st level has 4 x 4 balls; i.e. 16 ballsSimilarly 2nd level has 3 x 3 balls; i.e. 9 balls.3rd level has 2 x 2 balls; i.e. 4 balls.The top most level has just 1 ball. So the total number of balls is 16+9+4+1 = 30.   So the image has 30 Balls in all.

Q: Can character data be stored in computer memory? 1716 1

  • 1
    Yes---a primitive data type is used to store characters
    Correct
    Wrong
  • 2
    No---computer memory can only store patterns
    Correct
    Wrong
  • 3
    Yes---characters are stored in special memory
    Correct
    Wrong
  • 4
    No---computers can only store numbers
    Correct
    Wrong
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Answer : 1. "Yes---a primitive data type is used to store characters"
Explanation :

Answer: A) Yes---a primitive data type is used to store characters Explanation:

Q: If the given two numbers are respectively 7% and 28% of a third number, then what percentage is the first of the second ? 1715 0

  • 1
    24%
    Correct
    Wrong
  • 2
    29%
    Correct
    Wrong
  • 3
    34%
    Correct
    Wrong
  • 4
    25%
    Correct
    Wrong
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Answer : 4. "25%"
Explanation :

Answer: D) 25% Explanation: Here, k = 7 and l = 28Therefore, first number = klx100 % of second number = 7/28 x 100% of second number = 25% of second number.

Q: What color does blue and yellow make? 1714 0

  • 1
    Green
    Correct
    Wrong
  • 2
    Black
    Correct
    Wrong
  • 3
    Red
    Correct
    Wrong
  • 4
    White
    Correct
    Wrong
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Answer : 1. "Green"
Explanation :

Answer: A) Green Explanation: Mixing of blue and yellow colors make Green Color.                                     RYB (an abbreviation of red–yellow–blue) is a historical set of colors used in subtractive color mixing and is one commonly used set of primary colors. It is primarily used in art and design education, particularly painting. RYB predates modern scientific color theory, which has determined that cyan, magenta, and yellow are the best set of three colorants to combine, for the widest range of high-chroma colors.

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