GATE Practice Question and Answer

Q: DNA can be found in what Organelles? 2128 0

  • 1
    Chloroplasts and Mitichondria
    Correct
    Wrong
  • 2
    Nucleus and Ribosomes
    Correct
    Wrong
  • 3
    Ribosomes and Mitochondria
    Correct
    Wrong
  • 4
    Endoplasmic Reticulum and Nucleus
    Correct
    Wrong
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Answer : 1. "Chloroplasts and Mitichondria"
Explanation :

Answer: A) Chloroplasts and Mitichondria Explanation: DNA can be found in 3 Organelles namely Nucleus, Mitochondria in animals and Chloroplasts in plants.

Q: Find the correct sentence from the following options ? 2126 0

  • 1
    The dacoits having stopped to divide the booty, the police had overtaken them
    Correct
    Wrong
  • 2
    The dacoits being stopped to divide the booty, the police overtook them.
    Correct
    Wrong
  • 3
    The dacoits having been stopped for dividing the booty, the police overtook them
    Correct
    Wrong
  • 4
    The dacoits having stopped for dividing the booty, the police overtook them
    Correct
    Wrong
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Answer : 4. "The dacoits having stopped for dividing the booty, the police overtook them"
Explanation :

Answer: D) The dacoits having stopped for dividing the booty, the police overtook them Explanation: As it is the past continuous sentence.

Q: In a class there are certain no. of boys and girls. If 15 girls are absent then no. of boys will be twice that of girls. If 45 boys are absent then girls strength will be 5 times that of boys. Find number of boys actually present ? 2124 0

  • 1
    40
    Correct
    Wrong
  • 2
    50
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
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Answer : 2. "50"
Explanation :

Answer: B) 50 Explanation: 15 girls are absent => b = 2(g-15)...... eqn...(1) 45 boys are absent => g - 15 = 5(b-45).....eqn...(2) => g = 5(b-45) + 15 => b = 2((5(b-45)+15)-15) => b = 2(5b - 225 + 15 - 15) => b = 2(5b-225) => b = 10b - 450 => 9b = 450 => b = 50 so from equation(2) g - 15 = 5(b - 45) => g - 15 = 5(50-45) => g - 15 = 5(5) => g = 25 + 15 => g = 40 Therefore, the number of boys = 50 and girls = 40

Q: The missing number in the Series 114, 131, 165, 216,  ?, 369 2123 0

  • 1
    314
    Correct
    Wrong
  • 2
    304
    Correct
    Wrong
  • 3
    294
    Correct
    Wrong
  • 4
    284
    Correct
    Wrong
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Answer : 4. "284"
Explanation :

Answer: D) 284 Explanation: 114       131     165     216     ?      369    +17      +34     +51     +68    +85   => The missing number in the given Number series = 216 + 68 = 284.

Q: Which statement fits the Frontier Ethic? 2121 1

  • 1
    Recycle plastic
    Correct
    Wrong
  • 2
    Help those in need
    Correct
    Wrong
  • 3
    He who has more toys wins
    Correct
    Wrong
  • 4
    Walk lightly on Earth
    Correct
    Wrong
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Answer : 3. "He who has more toys wins"
Explanation :

Answer: C) He who has more toys wins Explanation: Frontier Ethic is Spending Earth's assets at the cost of losing resource capital. A frontier ethic assumes that the earth has an unlimited supply of resources. It is the notion of disregarding the Earth for the benefit or gain of man. If resources run out in one area, more can be found elsewhere or alternatively human ingenuity will find substitutes. This attitude sees humans as masters who manage the planet. It is completely Anthropocentric.

Q: Rajitha's present age is three years less than twice her age 12 years ago. Also, the ratio of Raj's present age to Rajitha's present age is 4:9. What will be Raj's age after 5 years ? 2120 0

  • 1
    17 yrs
    Correct
    Wrong
  • 2
    16 yrs
    Correct
    Wrong
  • 3
    19 yrs
    Correct
    Wrong
  • 4
    21 yrs
    Correct
    Wrong
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Answer : 1. "17 yrs"
Explanation :

Answer: A) 17 yrs Explanation: Let the present age of Raj and Rajitha be 4x and 9x.Then, according to question,9x = 2(9x-12)-3 => 9x = 27 => x = 3Raj's present age = 4x = 12yrs, After 5 years Raj's age will be 12 + 5 = 17 yrs.

Q: Which of the following is part of the axial skeleton? 2119 0

  • 1
    Thigh bone
    Correct
    Wrong
  • 2
    Shoulder bones
    Correct
    Wrong
  • 3
    Vertebral column
    Correct
    Wrong
  • 4
    Foot bones
    Correct
    Wrong
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Answer : 3. "Vertebral column"
Explanation :

Answer: C) Vertebral column Explanation: The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate. In the human skeleton, it consists of 80 bones and is composed of six parts; the skull bones, the ossicles of the middle ear, the hyoid bone, the rib cage, sternum and the vertebral column.   Bones of shoulder, thigh and foot are the part of appendicular skeleton.     Hence, Vertebral column is the part of axial skeleton.

Q: Which of the following CANNOT be considered a single phase? 2116 0

  • 1
    a heterogeneous mixture
    Correct
    Wrong
  • 2
    a pure solid
    Correct
    Wrong
  • 3
    a pure liquid
    Correct
    Wrong
  • 4
    a homogeneous mixture
    Correct
    Wrong
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Answer : 1. "a heterogeneous mixture"
Explanation :

Answer: A) a heterogeneous mixture Explanation: A pure solid and a pure liquid are definitely a single phase because they are so united, or homogeneous. This leads to a homogeneous mixture also being a single phase.   Hence, the option that cannot be considered a single phase is A. a heterogeneous mixture.

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