GATE Practice Question and Answer

Q: The least number of complete years in which a sum of money put out at 20% C.I. will be more than doubled is  ? 1533 0

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

Answer: B) 4 years Explanation: P1+20100n > 2P        Now, (6/5 x 6/5 x 6/5 x 6/5) > 2.       So, n = 4 years.

Q: How do you inspire others to be better ? 1533 0

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Answer :
Explanation :

Inspiration is powerful, but it isn’t easy. If you want to be a positive influence, capable of inspiring your loved ones to become better versions of themselves, please consider these:- Be a good example.- Read them.- Care about others.- Encouragement.- Be inspired yourself.- Share your own experience.- Share your success as well as your failures.- Be a good mentor.- Make them to trust you.

Q: 217 x 217 + 183 x 183 = ? 1532 0

  • 1
    84521
    Correct
    Wrong
  • 2
    87487
    Correct
    Wrong
  • 3
    80578
    Correct
    Wrong
  • 4
    78458
    Correct
    Wrong
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Answer : 3. "80578"
Explanation :

Answer: C) 80578 Explanation: 2172+1832   = 200+172+200-172   It is in the form of a+b2+a-b2=2a2+b2   = 2(40000 + 289) = 80578.

Q: Can yoy guess the Age of Karthik & Kalyan  ? 1530 0

  • 1
    68 & 44
    Correct
    Wrong
  • 2
    64 & 48
    Correct
    Wrong
  • 3
    58 & 54
    Correct
    Wrong
  • 4
    76 & 36
    Correct
    Wrong
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Answer : 2. "64 & 48"
Explanation :

Answer: B) 64 & 48 Explanation: Given Karthik + Kalyan = 112 Given that when karthik is at the age of kalyan he is twice of Kalyan's age i.e When he was 48 means Kalyan is at 24 => Present age of Kalyan is 48 And that of Karthik is 112 - 48 = 64

Q: Assuming the given statements to be true, find which of the two conclusions A and B given below is/are definitely true. Statements: C < T < L= P > Q,  N > C > Y Conclusions:   A. P > Y       B. Y < P 1529 0

  • 1
    only conclusion B is true.
    Correct
    Wrong
  • 2
    only conclusion A is true.
    Correct
    Wrong
  • 3
    neither conclusion I nor II is true.
    Correct
    Wrong
  • 4
    either conclusion I or II is true.
    Correct
    Wrong
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Answer : 1. "only conclusion B is true."
Explanation :

Answer: A) only conclusion B is true. Explanation: From given statements, we can conclude that N > C < T < L= P > Q  .....(1) Here given that C > Y but in eq(1) we got that C < T < T <= P => Y is definitely less than P. So only conclusion B is True.

Q: The sum of one-half, one-third and one-fourth of a number exceeds the number by 22. The number is 1529 0

  • 1
    264
    Correct
    Wrong
  • 2
    284
    Correct
    Wrong
  • 3
    215
    Correct
    Wrong
  • 4
    302
    Correct
    Wrong
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Answer : 1. "264"
Explanation :

Answer: A) 264 Explanation: Let the number be 'x'. Then, from given data x/2 + x/3 + x/4 = x+2213x/12 = x+22x = 264

Q: What state of matter is Jello? 1528 0

  • 1
    Liquid
    Correct
    Wrong
  • 2
    Solid
    Correct
    Wrong
  • 3
    Colloid
    Correct
    Wrong
  • 4
    Gas
    Correct
    Wrong
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Answer : 3. "Colloid"
Explanation :

Answer: C) Colloid Explanation: Jello is a colloid, a semi-rigid structure i.e, semi-solid suspended in a liquid. When you Heat it up a bit and you'll break the protein bonds of the gelatin and it will liquefy completely and if you freeze, it becomes solid.

Q: The number of sequences in which 4 players can sing a song, so that the youngest player may not be the last is ? 1528 0

  • 1
    2580
    Correct
    Wrong
  • 2
    3687
    Correct
    Wrong
  • 3
    4320
    Correct
    Wrong
  • 4
    5460
    Correct
    Wrong
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Answer : 3. "4320"
Explanation :

Answer: C) 4320 Explanation: Let 'Y' be the youngest player. The last song can be sung by any of the remaining 3 players. The first 3 players can sing the song in (3!) ways. The required number of ways = 3(3!) = 4320.

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