GRE प्रश्न और उत्तर का अभ्यास करें

प्र: A person says that his son is 5 times as old as his daughter and his wife is 5 times older than his son and he is twice the age of his wife . The sum total of all the ages equals the age of the grand mother who celebrated her 81st birthday today. How old was his son? 2275 0

  • 1
    50 yrs
    सही
    गलत
  • 2
    25 yrs
    सही
    गलत
  • 3
    72 yrs
    सही
    गलत
  • 4
    40 yrs
    सही
    गलत
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उत्तर : 1. "50 yrs"
व्याख्या :

Answer: A) 50 yrs Explanation: Let the daughter age be 'x'Therefore, Son age = 5x, Mother age = 25x, Person age = 50x. Thus we get, x+5x+25x+50x = 8181x = 81x = 1 Daughter's age = 1, Son's = 5, Mother's = 25, Person's age = 50.

प्र: Which of the following is generally true about the stratosphere? 2275 0

  • 1
    It is very dry
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  • 2
    It is very moist
    सही
    गलत
  • 3
    The dryness level varies with the season
    सही
    गलत
  • 4
    The dryness level varies with the moon cycle
    सही
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उत्तर : 1. "It is very dry"
व्याख्या :

Answer: A) It is very dry Explanation: The stratosphere layer of the atmosphere is very dry.

प्र: 90 D in a R A 2274 0

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उत्तर :
व्याख्या :

90 D in a R A => 90 degrees in a Right Angle.  This is similar to  26 L of the A = 26 Letters of the Alphabet 12 S of the Z.

प्र: The angles of a quadrilateral are in the ratio of 2:4:7:5. The smallest angle of the quadrilateral is equal to the smallest angle of a triangle. One of the angles of the triangle is twice the smallest angle of the triangle. What is the second largest angle of the triangle ? 2273 0

  • 1
    80 degrees
    सही
    गलत
  • 2
    60 degrees
    सही
    गलत
  • 3
    120 degrees
    सही
    गलत
  • 4
    40 degrees
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उत्तर : 2. "60 degrees"
व्याख्या :

Answer: B) 60 degrees Explanation: Given the angles of a quadrilateral are in the ratio of 2:4:7:5Let the angles of a quadrilateral are 2x, 4x, 7x, 5xBut we know that sum of the angles = 360 degrees.=> 2x + 4x + 7x + 5x = 360=> x = 20Therfore, the smallest angle of the quadrilateral = 2x = 2x20 = 40 degrees.One of the angle of the triangle = 2 x 40 = 80 degreesThe other angle is 180 - (40 + 80) = 60 degrees. Hence the second largest angle of the triangle is 60 degrees.

प्र: Find out the wrong number in the following series ? 2880, 480, 92, 24, 8, 4, 4 2272 0

  • 1
    480
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    गलत
  • 2
    92
    सही
    गलत
  • 3
    24
    सही
    गलत
  • 4
    4
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उत्तर : 2. "92"
व्याख्या :

Answer: B) 92 Explanation: The given series of numbers follow the rule that, 2880/6 = 480480/5   = 9696/4     = 2424/3     = 88/2       = 44/1       = 4 But 92 is not in the rule. It is the wrong number in the given series.

प्र: The compound interest earned by Sunil on a certain amount at the end of two years at the rate of 8% p.a. was Rs.2828.80. Find the total amount that Sunil got back at the end of two years in the form of principal plus interest earned  ? 2271 0

  • 1
    Rs. 11828.80
    सही
    गलत
  • 2
    Rs. 19828.80
    सही
    गलत
  • 3
    Rs. 9828.80
    सही
    गलत
  • 4
    Rs. 19328.80
    सही
    गलत
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उत्तर : 2. "Rs. 19828.80"
व्याख्या :

Answer: B) Rs. 19828.80 Explanation: Let the sum be Rs. P P{ 1+81002- 1 } = 2828.80   It is in the form of  a2-b2 = a+ba-b   P(8/100)(2 + 8/100) = 2828.80   P = 2828.80 / (0.08)(2.08)   = 1360/0.08 = 17000   Principal + Interest = Rs. 19828.80

प्र: 'BE' is related to 'GJ' in the same way as 'PS' is related to ? 2268 0

  • 1
    VX
    सही
    गलत
  • 2
    TU
    सही
    गलत
  • 3
    UX
    सही
    गलत
  • 4
    TV
    सही
    गलत
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उत्तर : 3. "UX"
व्याख्या :

Answer: C) UX Explanation: Each corresponding letter moves five places forward in the alphabet.Here as BE is related to GJ then PS will relate to UX.

प्र: Folder is to document as envelope is to 2265 0

  • 1
    Money
    सही
    गलत
  • 2
    Articles
    सही
    गलत
  • 3
    Letters
    सही
    गलत
  • 4
    Wires
    सही
    गलत
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उत्तर : 3. "Letters"
व्याख्या :

Answer: C) Letters Explanation: We know that, a folder holds documents in the same way an envelope holds letters.   Hence, Folder : Document :: Envelope : Letter.

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