GATE Practice Question and Answer

Q: Karthik read 613 th of a book in 1st week and 59 th of the remaining book in 2nd week. If there were 100 pages unread after 2nd week, how many pages were there in the book ? 2386 0

  • 1
    404
    Correct
    Wrong
  • 2
    415
    Correct
    Wrong
  • 3
    418
    Correct
    Wrong
  • 4
    420
    Correct
    Wrong
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Answer : 3. "418"
Explanation :

Answer: C) 418 Explanation: Let the total book be 1 Then, in the 1st week 613th of book is read i.e remaining pages =  1-613=713 in 2nd week he read 59th of it i.e 59×713=35117Remaining pages after 2nd week = 713-35117=28117 But given remaining pages after 2nd week = 100   28x117=100 --> x = 418   The total pages in the book are 418

Q: Buses start from a bus terminal with a speed of 20 km/hr at intervals of 10 minutes. What is the speed of a man coming from the opposite direction towards the bus terminal if he meets the buses at intervals of 8 minutes? 2386 0

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    5 kmph
    Correct
    Wrong
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    6 kmph
    Correct
    Wrong
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    7.5 kmph
    Correct
    Wrong
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    8 kmph
    Correct
    Wrong
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Answer : 1. "5 kmph"
Explanation :

Answer: A) 5 kmph Explanation: Let p be the speed of man in kmph According to the given data in the question, Distance travelled by bus in 10 min with 20 kmph == Distance travelled by man in 8 min with (20 + p) kmph in opposite direction => 20 x 10/60 = 8/60 (20 + p) => 200 = 160 + 8p => p = 40/8 = 5 kmph.

Q: A heap of coconuts is divided into groups of 2, 3 and 5 and each time one coconut is left over. The least number of Coconuts in the heap is  ? 2385 0

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    63
    Correct
    Wrong
  • 2
    31
    Correct
    Wrong
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    16
    Correct
    Wrong
  • 4
    27
    Correct
    Wrong
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Answer : 2. "31"
Explanation :

Answer: B) 31 Explanation: To get the least number of coconuts :LCM = 30 => 30 + 1 = 31

Q: The cost of 7 tables and 12 chairs is Rs 48,250. What is the cost of 21 tables and 36 chairs ? 2380 0

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    Rs. 1,44,750
    Correct
    Wrong
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    Rs. 2,35,745
    Correct
    Wrong
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    Rs. 89,489
    Correct
    Wrong
  • 4
    Rs.74,256
    Correct
    Wrong
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Answer : 1. "Rs. 1,44,750"
Explanation :

Answer: A) Rs. 1,44,750 Explanation: 3T+12C = 48,250----(1) 21T+36C = ? multiply eq (1) with 3i.e,, 3(7T+12C) = 48,250*321T+36C = 1,44,750/-

Q: Which unit holds data temporarily? 2380 0

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    Secondary storage unit
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    Output Unit
    Correct
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    Primary Memory Unit
    Correct
    Wrong
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    Input unit
    Correct
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Answer : 3. "Primary Memory Unit"
Explanation :

Answer: C) Primary Memory Unit Explanation: Memory is the part of the computer that temporarily holds data and instructions before and after they are processed by the ALU.   Memory is also known as primary storage, primary memory, main storage, internal storage, and main memory.   Manufacturers often use the term RAM, which stands for random-access memory.​

Q: If two is subtracted from each odd digit and three is added to each even digit in the number 94257636, how many digits will appear twice in the new number thus formed ? 2380 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
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    2
    Correct
    Wrong
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    3
    Correct
    Wrong
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Answer : 4. "3"
Explanation :

Answer: D) 3 Explanation: Here 5, 7 & 9 are repeating after modulation.

Q: What is the term used in tennis when the score is 40-40? 2378 0

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    Ace
    Correct
    Wrong
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    Led
    Correct
    Wrong
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    Deuce
    Correct
    Wrong
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    Tie
    Correct
    Wrong
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Answer : 3. "Deuce"
Explanation :

Answer: C) Deuce Explanation: When both sides have won the same number of points then: when each side has won one, or two, points, the score is described as "15-all" and "30-all" (or "15-up" and "30-up"), respectively. However, if each player has won three points, the score is called as "deuce", not "40–all". From that point on in the game, whenever the score is tied, it is described as "deuce", regardless of how many points have been played.

Q: Find the odd one out? 6, 3, 3, 4.5, 10 2376 0

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    3
    Correct
    Wrong
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    4.5
    Correct
    Wrong
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    6
    Correct
    Wrong
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    10
    Correct
    Wrong
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Answer : 4. "10"
Explanation :

Answer: D) 10 Explanation: Here the given number series is 6, 3, 3, 4.5, 10 The odd one in the given series is 10 The pattern it follows is 6 6 x 0.5 = 3 3 x  1  = 3 3 x 1.5 = 4.5 4.5 x 2 = 9   Hence, the odd number is 10.

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