GRE Practice Question and Answer

Q: Find the next number in the given series ? 3, 7, 6, 5, 9, 3, 12, 1, 15, . . . 2696 0

  • 1
    2
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    -1
    Correct
    Wrong
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Answer : 4. "-1"
Explanation :

Answer: D) -1 Explanation: 3, 7, 6, 5, 9, 3, 12, 1, 15, ... has two different series 1) 3, 6, 9, 12, 15..... 2) 7, 5, 3, 1, ..... -1 is the next number.

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Answer : 3. "Red and White"
Explanation :

Answer: C) Red and White Explanation:

Q: System Study involves 2694 0

  • 1
    documenting the existing system
    Correct
    Wrong
  • 2
    identifying current deficiencies and establishing new goals
    Correct
    Wrong
  • 3
    study of an existing system
    Correct
    Wrong
  • 4
    All the above
    Correct
    Wrong
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Answer : 4. "All the above"
Explanation :

Answer: D) All the above Explanation:

Q: Mr. A, Miss B, Mr. C and Miss D are sitting around a table and discussing their trades. 1. Mr. A sits opposite to cook 2. Miss b sits right to the barber.3. The washer man is on the left of the tailor 4. Miss D sits opposite Mr. C What are the trades of A and B ? 2691 0

  • 1
    Tailor and Barber
    Correct
    Wrong
  • 2
    Tailor and cook
    Correct
    Wrong
  • 3
    Barber and cook
    Correct
    Wrong
  • 4
    washer man and cook
    Correct
    Wrong
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Answer : 2. "Tailor and cook"
Explanation :

Answer: B) Tailor and cook Explanation: Clealry, C and D sit opposite to each other. So, if A sits opposite to cook, B shall be the cook.Now, B is to the right of barber. So, one of the rest, say C will be barber.Clealry, then D on the opposite side shall be washerman or tailor. But, washerman is left of tailor and D on the left of A.So, D is washerman and A is tailor. Thus, A and B are Tailor and Cook.

Q: At what time will B catch up with A, if A starts from a place at 11.00 A.M. and travels at a speed of 3.5 kmph, B starts at 1.00 P.M. and travels with speeds of 1 kmph for 1 hour, 2 kmph for the next 1 hour, 3 kmph for the next 1 hour and so on. 2685 0

  • 1
    8 : 47 pm
    Correct
    Wrong
  • 2
    6 : 40 pm
    Correct
    Wrong
  • 3
    8 : 42 pm
    Correct
    Wrong
  • 4
    7 : 40 pm
    Correct
    Wrong
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Answer : 4. "7 : 40 pm"
Explanation :

Answer: D) 7 : 40 pm Explanation: At 1 pm ... Distance between A and B = 2x3.5 = 7 kmsat 2 pm .....Distance between A and B = 7 + 3.5 - 1 = 9.5 kmsAt 3 pm ....Distance between A and B = 9.5 + 3.5 - 2 = 11 kms.......At 7 pm distance between A and B = 3 kms.From 7 pm to 8 pm, speed of A = 3.5 kmphspeed of B = 8 kmphRelative speed = 4.5 kmph Time taken by B to meet A = 3/4.5 hrs = 30/45 hrs = 120/3 mins = 40 mins. So meeting time is 7 : 40 PM.

Q: Two trains start from same place at same time at right angles to each other. Their speeds are 36km/hr and 48km/hr respectively. After 30 seconds the distance between them will be ? 2665 0

  • 1
    900 mts
    Correct
    Wrong
  • 2
    300 mts
    Correct
    Wrong
  • 3
    250 mts
    Correct
    Wrong
  • 4
    500 mts
    Correct
    Wrong
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Answer : 4. "500 mts"
Explanation :

Answer: D) 500 mts Explanation: Using pythagarous theorem,distance travelled by first train = 36x5/18x30 = 300mdistance travelled by second train = 48x5/18x30 = 400mso distance between them =√( 90000 + 160000) = √250000 = 500mts.

Q: Choose the pair which shows the same relation of the given pair from the following options ?  BRISTLE : BRUSH 2659 0

  • 1
    arm : leg
    Correct
    Wrong
  • 2
    key : piano
    Correct
    Wrong
  • 3
    recline : chair
    Correct
    Wrong
  • 4
    stage : curtain
    Correct
    Wrong
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Answer : 2. "key : piano"
Explanation :

Answer: B) key : piano Explanation: A bristle is a part of a brush; a key is a part of a piano.

Q: A constructor estimates that 4 people can paint Mr. Karthik's house in 6 days. If he uses 5 people instead of 4, how long will they take to complete the job ? 2654 0

  • 1
    3 days
    Correct
    Wrong
  • 2
    26/3 days
    Correct
    Wrong
  • 3
    13/4 days
    Correct
    Wrong
  • 4
    24/5 days
    Correct
    Wrong
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Answer : 4. "24/5 days"
Explanation :

Answer: D) 24/5 days Explanation: we know that m1 x d1 = m2 x d2=> 4 x 6 = 5 x dwhere d = no. of days taken by 5 men to paintd = 24/5 days.

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