GATE Practice Question and Answer

Q: Fact 1: All hats have brims.Fact 2: There are black hats and blue hats.Fact 3: Baseball caps are hats. If the first three statements are facts, which of the following statements must also be a fact?I. All caps have brims.II. Some baseball caps are blue.III. Baseball caps have no brims. 2099 0

  • 1
    I only
    Correct
    Wrong
  • 2
    II only
    Correct
    Wrong
  • 3
    I, II, and III
    Correct
    Wrong
  • 4
    None of the statements is a fact.
    Correct
    Wrong
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Answer : 4. "None of the statements is a fact."
Explanation :

Answer: D) None of the statements is a fact. Explanation: All baseball caps have brims, since baseball caps are hats (Fact 3) and all hats have brims (Fact 1). This rules out statement III—but it doesn’t follow that all caps, a category that may include caps that are not baseball caps, have brims (statement I). Statement II cannot be confirmed, either, since it is possible, given the information, that all baseball caps are black.

Q: A man rows his boat 60 km downstream and 30 km upstream taking 3 hrs each time. Find the speed of the stream ? 2099 0

  • 1
    5 kmph
    Correct
    Wrong
  • 2
    10 kmph
    Correct
    Wrong
  • 3
    15 kmph
    Correct
    Wrong
  • 4
    45 kmph
    Correct
    Wrong
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Answer : 1. "5 kmph"
Explanation :

Answer: A) 5 kmph Explanation: Speed of the boat downstream  s=a/t= 60/3 = 20 kmph Speed of the boat upstream s= d/t = 30/3= 10 kmph   Therefore,  The speed of the stream = speed of downstream - speed of upstream2=5 kmph

Q: Which is the highest gallantry award in India? 2097 0

  • 1
    Param Vir Chakra
    Correct
    Wrong
  • 2
    Kirti Chakra
    Correct
    Wrong
  • 3
    Vir Chakra
    Correct
    Wrong
  • 4
    Param Vishishtat Seva Medal
    Correct
    Wrong
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Answer : 1. "Param Vir Chakra"
Explanation :

Answer: A) Param Vir Chakra Explanation: Param Vir Chakra (PVC) is India's highest military decoration awarded for the displaying distinguished acts of valor during the war.   Ashok Chakra Award – An Indian military decoration awarded for valour, courageous action or self-sacrifice away from the battlefield. It is the peacetime equivalent of the Param Vir Chakra. Kirti Chakra – Second in order of precedence of peacetime gallantry awards. Maha Vir Chakra (MVC) is literally called a great warrior medal. Vir Chakra is an Indian gallantry award presented for acts of bravery in the wars.

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Answer : 3. "109"
Explanation :

Answer: C) 109 Explanation: From given data, R : M = 5 : 7 M : A = 5 : 7 R : M : A = 25 : 35 : 49 25 + 35 + 49 = 109

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Answer : 4. "45 kg"
Explanation :

Answer: D) 45 kg Explanation: Let the ratio of initial quantity of oils be 'x' => 4x, 5x & 8x.Let k be the quantity of third variety of oil in the final mixture.Let the ratio of initial quantity of oils be 'y'From given details,4x + 5 = 5y ..... (1)5x + 10 = 7y .....(2)8x + k = 9y ......(3) By solving (1) & (2), we getx = 5 & y = 5 From (3) => k = 5 Therefore, quantity of third variety of oil was 9y = 9(5) = 45kg.

Q: Sripad has scored average of 65 marks in three objects. In no subjects has he secured less than 58 marks. He has secured more marks in Maths than other two subjects. What could be his maximum score in Maths ? 2095 0

  • 1
    79
    Correct
    Wrong
  • 2
    77
    Correct
    Wrong
  • 3
    76
    Correct
    Wrong
  • 4
    73
    Correct
    Wrong
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Answer : 1. "79"
Explanation :

Answer: A) 79 Explanation: Assuming Sripad has scored the least marks in subject other than science,Then the marks he could secure in other two are 58 each.Since the average mark of all the 3 subject is 65.i.e (58+58+x)/3 = 65116 + x = 195x = 79 marks. Therefore, the maximum marks he can score in maths is 79.

Q: Solve the Riddle? 2094 0

  • 1
    79 hrs
    Correct
    Wrong
  • 2
    72 hrs
    Correct
    Wrong
  • 3
    52 hrs
    Correct
    Wrong
  • 4
    18 hrs
    Correct
    Wrong
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Answer : 4. "18 hrs"
Explanation :

Answer: D) 18 hrs Explanation: From the given data, 18 snakes can eat 18 bananas in 18 hrs. => 1 snake can eat 1 banana in 18 hrs => 79 snakes can eat 79 bananas in 18 hrs.   Hence, 18 hrs.

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