GATE Practice Question and Answer

Q: A bag contains 3 red balls, 5 yellow balls and 7 pink balls. If one ball is drawn at random from the bag, what is the probability that it is either pink or red? 2075 0

  • 1
    2/3
    Correct
    Wrong
  • 2
    1/8
    Correct
    Wrong
  • 3
    3/8
    Correct
    Wrong
  • 4
    3/4
    Correct
    Wrong
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Answer : 1. "2/3"
Explanation :

Answer: A) 2/3 Explanation: Given number of balls = 3 + 5 + 7 = 15 One ball is drawn randomly = 15C1 probability that it is either pink or red = 7C1 + 3C115C1 = 7 + 315 = 1015 = 23

Q: Raghu can complete a work in 12days working 9 hours a day. Arun can complete the same work in 8 days working 11 hours a day. If both Raghu and Arun work together, working 12 hours a day, in how many days can they complete the work ? 2075 0

  • 1
    3449 days
    Correct
    Wrong
  • 2
    12449 days
    Correct
    Wrong
  • 3
    4349 days
    Correct
    Wrong
  • 4
    41249 days
    Correct
    Wrong
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Answer : 3. "4349 days"
Explanation :

Answer: C) Option C Explanation: Raghu can complete the work in (12 x 9)hrs = 108 hrs.    Arun can complete the work in (8 x 11)hrs = 88 hrs.   Raghu's 1 hrs work = 1/108 and Arun's 1 hrs work = 1/88   (Raghu + Arun)'s 1 hrs work = 1108+188=492376  So, both Raghu and Arun will finish the work in 237649 hrs Number of days of 12 hours each=237649×112 = 19849=4349 days

Q: Artificial port of India is? 2075 0

  • 1
    Haldia
    Correct
    Wrong
  • 2
    Chennai or Madras
    Correct
    Wrong
  • 3
    Mangalore
    Correct
    Wrong
  • 4
    Kandla
    Correct
    Wrong
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Answer : 2. "Chennai or Madras"
Explanation :

Answer: B) Chennai or Madras Explanation: Chennai port is known for its Coastal breakwater, artificial, large seaport type of harbor. Chennai Port, formerly known as Madras Port, is the second largest container port of India, behind the Nhava Sheva Port, and the largest port in the Bay of Bengal. It is the third oldest port among the 13 major ports of India

Q: Water is an excellent solvent because 2074 0

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Answer :
Explanation :

Water is capable of dissolving a variety of different substances, which is why it is such a good solvent. And, water is called the "universal solvent" because it dissolves more substances than any other liquid It means that wherever water goes, either through the ground or through our bodies, it takes along valuable chemicals, minerals, and nutrients

Q: Find the odd one in the number series given below ? 17, 9, 10, 18.5, 35, 90 2074 0

  • 1
    9
    Correct
    Wrong
  • 2
    10
    Correct
    Wrong
  • 3
    18.5
    Correct
    Wrong
  • 4
    90
    Correct
    Wrong
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Answer : 3. "18.5"
Explanation :

Answer: C) 18.5 Explanation: The given series pattern follows   17       9       10       18.5       35       90   × 0.5 + 0.5,   × 1 + 1,   × 1.5 + 1.5,   × 2 + 2,   × 2.5 + 2.5   So here    17x0.5 + 0.5 = 9   9x1 + 1 = 10   10x1.5 + 1.5 = 16.5   16.5x2 + 2 = 35   35x2.5 + 2.5 = 90   Here the odd man in the given series is 18.5

Q: Choose the synonym of 'Maelstrom' from the following given words ? 2074 0

  • 1
    Congregation
    Correct
    Wrong
  • 2
    Thunder
    Correct
    Wrong
  • 3
    Miracle
    Correct
    Wrong
  • 4
    Turmoil
    Correct
    Wrong
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Answer : 4. "Turmoil"
Explanation :

Answer: D) Turmoil Explanation: 'Maelstrom' refers to a violent and confused state. The word closest in meaning would be 'turmoil', which also means a state of great disturbance.

Q: Orkut’s creator Buyukkokten has launched a new social network called ________, which is available on mobile only. 2073 0

  • 1
    Caller
    Correct
    Wrong
  • 2
    Hello
    Correct
    Wrong
  • 3
    Hi
    Correct
    Wrong
  • 4
    Hay
    Correct
    Wrong
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Answer : 2. "Hello"
Explanation :

Answer: B) Hello Explanation: Orkut’s creator Buyukkokten has launched a new social network called Hello, which is available on mobile only. The Hello.com app is available on Android and iOS in the following countries: US, Canada, Britain, France, Australia, Brazil, Ireland. Germany, Mexico and India are next on the list and the app should be available this month.

Q: Where was India's first F1 circuit built? 2072 0

  • 1
    Jaipur
    Correct
    Wrong
  • 2
    Coimbatore
    Correct
    Wrong
  • 3
    Noida
    Correct
    Wrong
  • 4
    Chennai
    Correct
    Wrong
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Answer : 3. "Noida"
Explanation :

Answer: C) Noida Explanation: Fi circuit refers to Formula One, is the highest class of open-wheeled auto racing defined by FIA, motorsport's world governing body.   The Buddh International Circuit is an Indian motor racing circuit in Greater Noida, Uttar Pradesh was India's first F1 circuit.

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