GATE Practice Question and Answer

Q: There are n boxes and m fruits. If we put 3 fruits in each box 3 fruits will be excess. If we put 4 fruits in each box 1 box will be excess. Find number of boxes and fruits ? 1620 0

  • 1
    3 & 9
    Correct
    Wrong
  • 2
    6 & 19
    Correct
    Wrong
  • 3
    7 & 24
    Correct
    Wrong
  • 4
    5 & 18
    Correct
    Wrong
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Answer : 3. "7 & 24"
Explanation :

Answer: C) 7 & 24 Explanation: 7 boxes & 24 Balls.Let, n = No. of boxes ; m = No. of fruits3n+3 = m---------->(1)4(n-1)= m---------->(2)=>4n-4 = 3n+3;=>4n-3n = 4+3n = 7Put n=7 in eqn(1)=> 3(7)+3 = m21+3 = mm = 24; Number of boxes = 7 and fruits = 24

Q: Makaibari is the costliest variety of what? 1619 0

  • 1
    Coffee
    Correct
    Wrong
  • 2
    Pepper
    Correct
    Wrong
  • 3
    Tea
    Correct
    Wrong
  • 4
    Water
    Correct
    Wrong
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Answer : 3. "Tea"
Explanation :

Answer: C) Tea Explanation: Makaibari is the world's first tea factory and was established in 1859 in Darjeeling, West Bengal.    It is most expensive tea in India which costs around 1.12 lakhs for 1 kg of tea.   Hence, Makaibari is the costliest variety of Tea.

Q: If x = 2 + 223 + 213 then find the value of x3-6x2+6x ? 1619 0

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

Answer: B) 2 Explanation: Given that x = 2+ 223 + 213   So x - 2 = 223 + 213   Now cubing on both sides, we get     => x3-8-6x2+12x = 4 + 2 + 6(x-2)   Therefore, x3-6x2+6x = -6 + 8 = 2

Q: The average of marks in 3 subjects is 224. The first subject marks is twice the second and the second subject marks is twice the third. Find the second subject marks ? 1618 0

  • 1
    384
    Correct
    Wrong
  • 2
    96
    Correct
    Wrong
  • 3
    192
    Correct
    Wrong
  • 4
    206
    Correct
    Wrong
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Answer : 3. "192"
Explanation :

Answer: C) 192 Explanation: Let the third subject marks be 'x'=> Second subject marks = 2x=> Third subject marks = 4xGiven avg = 224x + 2x + 4x = 224 x 3=> 7x = 224 x 3=> x = 96Hence, Second subject marks = 2x = 2 x 96 = 192.

Q: LCD of 12 and 18 1618 0

  • 1
    36
    Correct
    Wrong
  • 2
    42
    Correct
    Wrong
  • 3
    12
    Correct
    Wrong
  • 4
    6
    Correct
    Wrong
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Answer : 1. "36"
Explanation :

Answer: A) 36 Explanation:   LCD is nothing but Lowest or Least Common Denominator   Here LCD of 12 and 18 means LCD of two fractions with denominators 12 and 18 respectively.   Therefore, LCM of 12 & 18 = 6 x 3 x 2 = 36     How to calculate LCD :: The lowest common denominator or least common denominator (LCD) is the least common multiple (LCM) of the denominators of a set of fractions.

Q: What is your ideal working environment ? 1617 0

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Answer :
Explanation :

The interviewer is attempting to assess how closely your ideal fits with the reality of their organisation. A positive work environment makes employees feel good about coming to work, and this provides the motivation to sustain them throughout the day. When you can find the ideal working environment that best suits your work ethics and personality, you will become more productive and lead a fulfilling life. - Before answering, take into account how their company is structured in terms of work days, formality, small start-up verses large corporation, etc.- Focus on wanting an environment that allows for the use and growth of your established skills and qualities.- Highlight your desire to work in a team-oriented workplace.- Talk about your work-style and that it blends in well with the company’s vision.

Q: What belongs to you but is used more by others? 1616 0

  • 1
    Clothes
    Correct
    Wrong
  • 2
    Cosmetics
    Correct
    Wrong
  • 3
    Shoes
    Correct
    Wrong
  • 4
    Name
    Correct
    Wrong
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Answer : 4. "Name"
Explanation :

Answer: D) Name Explanation: Yep! It's your NAME that belongs to you but is used more by others than you.

Q: Find the Value of ? 5.112.2+5.553.3+6.31.4+7.22.001 = ? x 3.34 1614 0

  • 1
    81
    Correct
    Wrong
  • 2
    77
    Correct
    Wrong
  • 3
    73
    Correct
    Wrong
  • 4
    89
    Correct
    Wrong
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Answer : 4. "89"
Explanation :

Answer: D) 89 Explanation: This can be done in a method called Approximation. Now,  52 + 63 + 6 + 72 = ? x 3.3425 + 216 + 6 + 49 = ? x 3.34296 = ? x 3.34? = 2963.34 = 88.622 ≅ 89

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