GATE Practice Question and Answer

Q: In a certain code ARCHIVE is written as DSBGFWJ. How is SYSTEMS is written in that code ? 3187 0

  • 1
    TZTSTUN
    Correct
    Wrong
  • 2
    TZTSTNF
    Correct
    Wrong
  • 3
    TZTUTNF
    Correct
    Wrong
  • 4
    TZTNTFS
    Correct
    Wrong
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Answer : 2. "TZTSTNF"
Explanation :

Answer: B) TZTSTNF Explanation: ARC -> CRA ->(+1) DSB    H ->     H ->(-1) GIVE  ->  EVI ->(+1) FWJ  Similarly,  SYS -> SYS ->(+1) TZT    T ->     T ->(-1) SEMS -> SME ->(+1) TNF

Q: Which of the following is not purely output device? 3186 1

  • 1
    Printer
    Correct
    Wrong
  • 2
    Speaker
    Correct
    Wrong
  • 3
    Plotter
    Correct
    Wrong
  • 4
    Screen
    Correct
    Wrong
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Answer : 4. "Screen"
Explanation :

Answer: D) Screen Explanation: A touch screen is the only device which works as both an input and an output device among the given options. You view the options available to you on the screen (output) and you then use your finger to touch the option that you have chosen (input).   Hence, Screen is not purely output device.

Q: Find the next number in the given number series? 50, 51, 47, 56, 40, ? 3177 0

  • 1
    58
    Correct
    Wrong
  • 2
    65
    Correct
    Wrong
  • 3
    76
    Correct
    Wrong
  • 4
    81
    Correct
    Wrong
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Answer : 2. "65"
Explanation :

Answer: B) 65 Explanation: The given number series is 50, 51, 47, 56, 40, ?   5050 + 12 = 5151 - 22 = 4747 + 32 = 5656 - 42 = 4040 + 52 = 65   Hence, the next number in the given number series is 65.

Q: If the third day of a month is Tuesday, which of the following would be the 4th day before the 27th day of that month? 3171 1

  • 1
    Tuesday
    Correct
    Wrong
  • 2
    Monday
    Correct
    Wrong
  • 3
    Wednesday
    Correct
    Wrong
  • 4
    Sunday
    Correct
    Wrong
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Answer : 2. "Monday"
Explanation :

Answer: B) Monday Explanation: Dates on which Tuesday fall are 3,10,17, and 24   Hence, the 27th day of the month will be (Tuesday + 3 days=)Friday   Required day of the month = Friday - 4 = Monday

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Answer : 1. "84 years"
Explanation :

Answer: A) 84 years Explanation: Let the age of ruler is x so that of son = x/2 (given)Now according to the given condition (x/6) + (x/12) + (x/7) + 5 + (x/2) + 4 = x=> x = 84

Q: The ratio of male and female in a city is 7 : 8 respectively and percentage of children among male and female is 25 and 20 respectively. If number of adult females is 156800, what is the total population of the city? 3150 0

  • 1
    4,12,480
    Correct
    Wrong
  • 2
    3,67,500
    Correct
    Wrong
  • 3
    5,44,700
    Correct
    Wrong
  • 4
    2,98,948
    Correct
    Wrong
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Answer : 2. "3,67,500"
Explanation :

Answer: B) 3,67,500 Explanation: Let the total population be 'p' Given ratio of male and female in a city is 7 : 8 In that percentage of children among male and female is 25% and 20% => Adults male and female % = 75% & 80% But given adult females is = 156800 => 80%(8p/15) = 156800 => 80 x 8p/15 x 100 = 156800 => p = 156800 x 15 x 100/80 x 8 => p = 367500 Therefore, the total population of the city = p = 367500

Q: Suppose today is Friday, what day of the week will it be 65 days from now? 3146 0

  • 1
    Saturday
    Correct
    Wrong
  • 2
    Sunday
    Correct
    Wrong
  • 3
    Friday
    Correct
    Wrong
  • 4
    Thursday
    Correct
    Wrong
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Answer : 2. "Sunday"
Explanation :

Answer: B) Sunday Explanation: The day of the week repeats every 7 days. Given today is Friday. Again Friday is repeated on the 7th day, 14th,... on 7 multiple days. Hence, Friday is on the 63rd day, as 63 is multiple of 7.   Now, the required day of the week on the 65th day is Sunday.

Q: In a certain code DOWN is written as '5@9#' and NAME is written as '#6%3'. How is MODE written in that code ? 3139 0

  • 1
    6@53
    Correct
    Wrong
  • 2
    %@53
    Correct
    Wrong
  • 3
    53%#
    Correct
    Wrong
  • 4
    %#35
    Correct
    Wrong
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Answer : 2. "%@53"
Explanation :

Answer: B) %@53 Explanation: From the given information : D O W N A M E == 5 @ 9 # 6 % 3 MODE = %@53

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