GATE Practice Question and Answer

Q: System Study involves 2105 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: Rs. 69 were divided among 115 family members so that each lady gets 50 paise less than each gentleman, and each gentleman received twice the paise as each lady received. Find the number of  gentlemen in the family? 2105 0

  • 1
    23
    Correct
    Wrong
  • 2
    92
    Correct
    Wrong
  • 3
    48
    Correct
    Wrong
  • 4
    52
    Correct
    Wrong
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Answer : 1. "23"
Explanation :

Answer: A) 23 Explanation: Total number of female members = 115 Let the number of males = x Number of females = y => x + y = 115  ......(1) According to the given data, x + y(0.50) = 69 ......(2) From (1) & (2), we get 0.5y = 46 => y = 46 x 2 = 92 => x = 115 - 92 = 23   Hence, required number of gentlemen in the family = x = 23.

Q: Find the missing number in the given number series? 514, 470, ?, 415, 404 2100 0

  • 1
    441
    Correct
    Wrong
  • 2
    437
    Correct
    Wrong
  • 3
    426
    Correct
    Wrong
  • 4
    420
    Correct
    Wrong
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Answer : 2. "437"
Explanation :

Answer: B) 437 Explanation: Given number series is 514   470   ?   415   404       Here the pattern it follows is   514   514 - 44 = 470   470 - 33 = 437   437 - 22 = 415   415 - 11 = 404   Hence, the missing number in the given number series is 437.

Q: Crack the Logical Password of the Mobile ? 2099 0

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Answer :
Explanation :

65292 1st digit is 3 x 2 = 6 3rd digit is 5-3 = 2 4th digit is 5+4 = 9  6+5 = 2+9 = 9+2 = 11

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Answer : 4. "9:1"
Explanation :

Answer: D) 9:1 Explanation: Milk = 3/5 x 20 = 12 liters, water = 8 liters   If 10 liters of mixture are removed, amount of milk removed = 6 liters and amount of water removed = 4 liters.   Remaining milk = 12 - 6 = 6 liters Remaining water = 8 - 4 = 4 liters   10 liters of pure milk are added, therefore total milk = (6 + 10) = 16 liters.   The ratio of milk and water in the new mixture = 16:4 = 4:1   If the process is repeated one more time and 10 liters of the mixture are removed, then amount of milk removed = 4/5 x 10 = 8 liters.   Amount of water removed = 2 liters.   Remaining milk = (16 - 8) = 8 liters. Remaining water = (4 -2) = 2 liters.   Now 10 lts milk is added => total milk = 18 lts   The required ratio of milk and water in the final mixture obtained   = (8 + 10):2 = 18:2 = 9:1.

Q: "Compounding frequency" refers to 2098 0

  • 1
    What type of interest your account earns
    Correct
    Wrong
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    How often your interest is calculated and added back into your account
    Correct
    Wrong
  • 3
    What interest rate you can expect from your account
    Correct
    Wrong
  • 4
    How easily you can add money into your account
    Correct
    Wrong
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Answer : 2. "How often your interest is calculated and added back into your account"
Explanation :

Answer: B) How often your interest is calculated and added back into your account Explanation: Compounding frequency : The time periods when interest will be calculated on top of the original loan amount (or) The number of compounding periods in one year.   The greater the compounding frequency, the more often your interest is calculated and added back into your account.

Q: Planet : Orbit :: Projectile : ? 2089 0

  • 1
    Path
    Correct
    Wrong
  • 2
    Milky way
    Correct
    Wrong
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    Track
    Correct
    Wrong
  • 4
    Trajectory
    Correct
    Wrong
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Answer : 4. "Trajectory"
Explanation :

Answer: D) Trajectory Explanation: The path traced by planet is called Orbit. Similarly, the path traced by projectile is called Trajectory.   Hence, Planet : Orbit : : Projectile : Trajectory.

Q: Fill in the blank with suitable preposition in the following sentence.   ____ the two I prefer tea. 2086 0

  • 1
    From
    Correct
    Wrong
  • 2
    In
    Correct
    Wrong
  • 3
    Between
    Correct
    Wrong
  • 4
    Among
    Correct
    Wrong
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Answer : 3. "Between"
Explanation :

Answer: C) Between Explanation: Between the two I prefer tea is the correct sentence with suitable preposition.

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