GATE Practice Question and Answer

Q: System Study involves 2749 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: 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. 2748 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: "Compounding frequency" refers to 2748 0

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    What type of interest your account earns
    Correct
    Wrong
  • 2
    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: Given that on 9th August 2016 is Saturday. What was the day on 9th August 1616 ? 2747 0

  • 1
    Saturday
    Correct
    Wrong
  • 2
    Sunday
    Correct
    Wrong
  • 3
    Friday
    Correct
    Wrong
  • 4
    Monday
    Correct
    Wrong
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Answer : 1. "Saturday"
Explanation :

Answer: A) Saturday Explanation: We know that, After every 400 years, the same day occurs.Thus, if 9th August 2016 is Saturday, before 400 years i.e., on 9th August 1616 has to be Saturday.

Q: 5% people of a village in India died by dengue, 15% of the remainder left the village on account of fear. If now the population is reduced to 3553, how much was it in the beginning ? 2743 0

  • 1
    4400
    Correct
    Wrong
  • 2
    3100
    Correct
    Wrong
  • 3
    2800
    Correct
    Wrong
  • 4
    5600
    Correct
    Wrong
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Answer : 1. "4400"
Explanation :

Answer: A) 4400 Explanation: Let 'P' be the original population at the beginning P x (95/100) x (85/100) = 3553 P = 4400.

Q: A driver of auto rickshaw makes a profit of 20% on every trip when he carries 3 passengers and the price of petrol is Rs. 30 a litre. Find the % profit for the same journey if he goes for 4 passengers per trip and the price of petrol reduces to Rs. 24 litres ? 2740 0

  • 1
    68%
    Correct
    Wrong
  • 2
    80%
    Correct
    Wrong
  • 3
    75%
    Correct
    Wrong
  • 4
    100%
    Correct
    Wrong
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Answer : 4. "100%"
Explanation :

Answer: D) 100% Explanation: When 3 passengers income was 3xexpense= Rs.30 profit =20% of 30 = Rs.6 That means his earning is Rs.36. so that per passenger fare must be Rs.12. When 4 passengersearning = 12x4=Rs.48.expense =Rs.24.profit = Rs.24 = 100%

Q: Sound following a flash of lightning is called 2734 0

  • 1
    Stoning
    Correct
    Wrong
  • 2
    Bolting
    Correct
    Wrong
  • 3
    Thunder
    Correct
    Wrong
  • 4
    Cloud clash
    Correct
    Wrong
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Answer : 3. "Thunder"
Explanation :

Answer: C) Thunder Explanation: The Sound Following the flash of lighting is because of Thunder.   Lightning is seen earlier than thunder because light travels much faster than sound.   The roar of thunder is the result of a shock wave produced when lightning super-heats the air through which it passes, causing that air to expand very rapidly. This rapid expansion of air creates a shock wave that travels outward at close to the speed of sound.

Q: One major cause of floods is 2725 0

  • 1
    light rain over a large area
    Correct
    Wrong
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    a decrease in stream discharge
    Correct
    Wrong
  • 3
    rapid spring snowmelt
    Correct
    Wrong
  • 4
    increased capacity of stream channels
    Correct
    Wrong
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Answer : 3. "rapid spring snowmelt"
Explanation :

Answer: C) rapid spring snowmelt Explanation: There are lots of reasons behind the flood in any area but the main reason is a heavy downpour or rapid snowmelt can flood canyons with a mixture of soil, rock, and water is a major cause of floods.   When the spring times come, sometimes there's a lot of warmth that suddenly comes, especially nowadays when there are things such as global warming. So the snow melts and large amounts of water can flood the fields that are often found at the foot of a mountain or similar things.   But they may also be caused by deforestation, drainage channel modification from a landslide, earthquake or volcanic eruption. Examples include outburst floods and lahars.

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