GATE Practice Question and Answer

Q: If 'A$B' means ' A is father of B ', 'A#B' means ' A is daughter of B ', 'A@B' means ' A is sister of B ' then  how is K related to Lin "H@K$L#M" ? 1777 0

  • 1
    Husband
    Correct
    Wrong
  • 2
    Uncle
    Correct
    Wrong
  • 3
    Father
    Correct
    Wrong
  • 4
    Cannot be determined
    Correct
    Wrong
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Answer : 1. "Husband"
Explanation :

Answer: A) Husband Explanation:

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Answer : 1. "S"
Explanation :

Answer: A) S Explanation: Here as given Q is in the middle and it satisfies all other conditions given in the question.

Q: Conditions: I is brother of J K is father of I L is brother of M M is daughter of J , then Who is I to L? 1443 0

  • 1
    Grand father
    Correct
    Wrong
  • 2
    Uncle
    Correct
    Wrong
  • 3
    Son
    Correct
    Wrong
  • 4
    Brother
    Correct
    Wrong
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Answer : 2. "Uncle"
Explanation :

Answer: B) Uncle Explanation:

Q: Vishal is 24th from either end of the row of boys ? How many boys are there in the row ? 1247 0

  • 1
    48
    Correct
    Wrong
  • 2
    49
    Correct
    Wrong
  • 3
    46
    Correct
    Wrong
  • 4
    47
    Correct
    Wrong
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Answer : 4. "47"
Explanation :

Answer: D) 47 Explanation: Given that Vishal is 24th from either end of the row i.e from two sides   1 2 3 4 5 . . . . . .24 23 22 21 20 . . . . . 5 4 3 2 1    Here before Vishal there are 23 members and after Vishal there are 23 members   = 23+1+23 --> 47 members in the row.

Q: A man rows his boat 60 km downstream and 30 km upstream taking 3 hrs each time. Find the speed of the stream ? 1655 0

  • 1
    5 kmph
    Correct
    Wrong
  • 2
    10 kmph
    Correct
    Wrong
  • 3
    15 kmph
    Correct
    Wrong
  • 4
    45 kmph
    Correct
    Wrong
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Answer : 1. "5 kmph"
Explanation :

Answer: A) 5 kmph Explanation: Speed of the boat downstream  s=a/t= 60/3 = 20 kmph Speed of the boat upstream s= d/t = 30/3= 10 kmph   Therefore,  The speed of the stream = speed of downstream - speed of upstream2=5 kmph

Q: A Child has 1200 five rupee coins. He wants to place them in such a way that the number of rows and the number of columns remains the same. What is the minimum number of coins that he needs more for this purpose? 1586 0

  • 1
    125
    Correct
    Wrong
  • 2
    96
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 4. "25"
Explanation :

Answer: D) 25 Explanation: We know that, to be in the form that the number of rows and the number of columns to be equal the number should be a perfect square (a2). Given number is 1200 The perfect number which is above and near to 1200 is 1225 which is 35  35. Therefore, The minimum number of coins he need is 25.

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Answer : 2. "44"
Explanation :

Answer: B) 44 Explanation:   Given U=120 5% of 120 = 6 Therefore, Students who can play Chess alone or Carroms alone =  120 - (30+40+6)= 44

Q: Bhel commissions another 600Mw thermal unit in which state ? 1489 1

  • 1
    Telangana
    Correct
    Wrong
  • 2
    Andhra Pradesh
    Correct
    Wrong
  • 3
    Chattisgarh
    Correct
    Wrong
  • 4
    Karnataka
    Correct
    Wrong
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Answer : 1. "Telangana"
Explanation :

Answer: A) Telangana Explanation:

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