GATE Practice Question and Answer

Q: If Rs. 782 be divided into three parts, proportional to 1/2:2/3:3/4, then the first part is: 2651 0

  • 1
    Rs. 408
    Correct
    Wrong
  • 2
    Rs. 204
    Correct
    Wrong
  • 3
    Rs. 412
    Correct
    Wrong
  • 4
    Rs. 220
    Correct
    Wrong
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Answer : 2. "Rs. 204"
Explanation :

Answer: B) Rs. 204 Explanation: Given ratio = 1/2:2/3:3/4 = 6:8:9 1st part = 782 x 6/23 = Rs. 204.

Q: K is 50% faster than L. If L starts at 9 A.M. and K starts at 10 A.M. L travels at a speed of 50 km/hr. If L and K are 300 kms apart, The time when they meet when they travel in opposite direction is ? 2648 0

  • 1
    12 pm
    Correct
    Wrong
  • 2
    1 pm
    Correct
    Wrong
  • 3
    11 am
    Correct
    Wrong
  • 4
    11:30 am
    Correct
    Wrong
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Answer : 1. "12 pm"
Explanation :

Answer: A) 12 pm Explanation: let 't' be the time after which they met since L starts. Given K is 50% faster than L 50 t + 1.5*50(t-1) = 300 50 t +75 t = 300 + 75 t = 375 / 125 = 3 hrs past the time that L starts So they meet at (9 + 3)hrs = 12:00 noon.

Q: If x = √8 - √7, y = √6 - √5 and z = √10 - 3, which of the following is true  ? 2644 0

  • 1
    x > y < z
    Correct
    Wrong
  • 2
    x < y < z
    Correct
    Wrong
  • 3
    x > y > z
    Correct
    Wrong
  • 4
    z < x < y
    Correct
    Wrong
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Answer : 4. "z < x < y"
Explanation :

Answer: D) z < x < y Explanation: x = √8 - √7 = 1/(√8 + √7) and y = √6 - √5 = 1/(√6 + √5) and z = √10 - 3 = 1/(√10 + 3) As (√8 + √7) > (√6 + √5), (√8 - √7) < (√6 - √5) As (√10 + 3) > (√8 + √7) > (√6 + √5) z < x < y.

Q: What does 'M' stand for in chemistry? 2641 0

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Answer :
Explanation :

'M' is used as a unit of molarity and stands for mole per litre i.e, number of moles of solute per liter of solution.

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Answer : 2. "28 24 16 15 09 04"
Explanation :

Answer: B) 28 24 16 15 09 04 Explanation: Carefully obsrving the given arrangement, we find the following pattern:We observe that the given numbers are arranged in descending order (from left to right), altering the position of only one number in each step, followed by the other numbers as it is. The process continues till the whole set of numbers is arranged in the descending order. Step1: 28 16 09 24 15 04Step2: 28 24 16 09 15 04Step3: 28 24 16 15 09 04 Hence, the answer is B

Q: Which one of the following launched world's longest scheduled flight ? 2640 0

  • 1
    Qatar Airways
    Correct
    Wrong
  • 2
    British Airways
    Correct
    Wrong
  • 3
    Jet Blue
    Correct
    Wrong
  • 4
    Air India
    Correct
    Wrong
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Answer : 1. "Qatar Airways"
Explanation :

Answer: A) Qatar Airways Explanation: The Qatar Airways has launched the World’s longest scheduled commercial service to ply between Doha to Auckland. The inaugural service of Flight QR920 took off on February 5, 2017 from Doha and will take 16 hours and 20 minutes to travel 14,535 kilometers to reach Auckland in New Zealand.This makes Qatar Airways to launch the World’s fastest and longest passenger service in terms of flying time. Prior to this, emirates launched the world’s longest non-stop scheduled commercial flight with a service from Dubai to Auckland, spanning 14,200 kilometres.

Q: Last year vivek saved 10% of his annual earnings, this year he earned 5% more than last year and he saved 12% of his annual earnings. The amount saved this year was what percentage of the amount saved last year ? 2639 0

  • 1
    87%
    Correct
    Wrong
  • 2
    98%
    Correct
    Wrong
  • 3
    138%
    Correct
    Wrong
  • 4
    126%
    Correct
    Wrong
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Answer : 4. "126%"
Explanation :

Answer: D) 126% Explanation: Suppose total earnings = Rs. 1000010% saving = 10000 x (10/100) = Rs. 1000This year 5% more income than prev year = Rs. 1050012% saving = 10500 x (12/100) = Rs. 1260Percentage of amount saved = (1260/1000) x 100 = 126%

Q: Car is to garage as aeroplane is to 2639 0

  • 1
    Hangar
    Correct
    Wrong
  • 2
    Port
    Correct
    Wrong
  • 3
    Harbour
    Correct
    Wrong
  • 4
    Depot
    Correct
    Wrong
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Answer : 1. "Hangar"
Explanation :

Answer: A) Hangar Explanation: We park car temporarily in garrage, similarly, aeroplane is temporarily parked in hangar.

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