GATE Practice Question and Answer

Q: एक्सेल वर्तमान सेल पता प्रदर्शित करता है 3477 0

  • 1
    टाइटल बार
    Correct
    Wrong
  • 2
    नेम बॉक्स
    Correct
    Wrong
  • 3
    स्टेटस बार
    Correct
    Wrong
  • 4
    फार्मूला बार
    Correct
    Wrong
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Answer : 2. "नेम बॉक्स"
Explanation :

Answer: B) Name Box Explanation:

Q: The number of ways in which 8 distinct toys can be distributed among 5 children? 3476 0

  • 1
    5P8
    Correct
    Wrong
  • 2
    5^8
    Correct
    Wrong
  • 3
    8P5
    Correct
    Wrong
  • 4
    8^5
    Correct
    Wrong
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Answer : 2. "5^8"
Explanation :

Answer: B) 5^8 Explanation: As the toys are distinct and not identical, For each of the 8 toys, we have three choices as to which child will receive the toy. Therefore, there are 58 ways to distribute the toys.   Hence, it is 58 and not 85.

Q: Find the missing number in the given series ? 15, 51, 216, 1100, ?, 46452 3474 0

  • 1
    5660
    Correct
    Wrong
  • 2
    6560
    Correct
    Wrong
  • 3
    6750
    Correct
    Wrong
  • 4
    6630
    Correct
    Wrong
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Answer : 4. "6630"
Explanation :

Answer: D) 6630 Explanation: Let first no. be "k" and multiple be "l"...start value of y with 3then,[(k x y) + {l x (l-1)}]Thus, we get 15 x 3 + 3 x 2 = 5151 x 4 + 4 x 3 = 216216 x 5 + 5 x 4 = 11001100 x 6 + 6 x 5 = 66306630 x 7 + 7 x 6 = 46452 Therefore, the missing number is 6630.

Q: The two trains of lengths 400 m, 600 m respectively, running at same directions. The faster train can cross the slower train in 180 sec, the speed of the slower train is 48 kmph. Then find the speed of faster train  ? 3466 0

  • 1
    68 kmph
    Correct
    Wrong
  • 2
    52 kmph
    Correct
    Wrong
  • 3
    76 kmph
    Correct
    Wrong
  • 4
    50 kmph
    Correct
    Wrong
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Answer : 1. "68 kmph"
Explanation :

Answer: A) 68 kmph Explanation: Let the speed of the faster train be 'X' kmph, Then their relative speed= X - 48 kmphTo cross slower train by faster train, Distance need to be cover = (400 + 600)m = 1 km. and Time required = 180 sec = 180/3600 hr = 1/20 hr.Time = Distance/Speed => 1/20 = 1/(x-48)X = 68 kmph

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Answer :
Explanation :

1. Answer (2) G 2. Answer (1) BE All other pairs are in same class. 3. Answer (3) ADF in class 9. 4. Answer (4) Linc pen.

Q: The day before yesterday, I was 25 years old, and next year I will turn 28. How is it possible? 3455 0

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Answer :
Explanation :

On carefully inspecting this question, one can understand that there are two days which are important and these are: A. My Birthday. B. The day when I am making this statement. If you think for a while, you will understand that such statements can be made only around the year’s end. So, if my birthday is on 31 December, then I will be making this statement on 1 January. I will further explain using the following example: 1. Consider that today is 01 January 2017. 2. Then, the day before yesterday was 30 December 2016 and according to the question I was 25 then. 3. Yesterday was 31 December 2016, which happens to be my birthday too (Woohoo!), and my age increases by one to become 26. 4. I will turn 27 on my birthday this year (31 December 2017). 5. I will turn 28 on my birthday next year (31 December 2018). Now, if you read the question again, it will make more sense:   The day before yesterday(30 December 2016), I was 25 years old and next year(31 December 2018) I will be 28.

Q: The ratio of the incomes of Pavan and Amar is 4 : 3 and the ratio of their expenditures are 3:2. If each person saves Rs. 1889, then find the income of Pavan? 3449 0

  • 1
    6548
    Correct
    Wrong
  • 2
    5667
    Correct
    Wrong
  • 3
    7556
    Correct
    Wrong
  • 4
    8457
    Correct
    Wrong
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Answer : 3. "7556"
Explanation :

Answer: C) 7556 Explanation: Let ratio of the incomes of Pavan and Amar be 4x and 3x and Ratio of their expenditures be 3y and 2y 4x - 3y = 1889 ......... I and 3x - 2y = 1889 ...........II I and II y = 1889 and x = 1889 Pavan's income = 7556

Q: Two men A and B start from place X walking at 4 ½ kmph and 5 ¾ kmph respectively. How many km apart they are at the end of 3 ½ hours if they are walking in the same direction ? 3441 0

  • 1
    2 9/7 km
    Correct
    Wrong
  • 2
    3 7/5 km
    Correct
    Wrong
  • 3
    1 3/4 km
    Correct
    Wrong
  • 4
    4 3/8 km
    Correct
    Wrong
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Answer : 4. "4 3/8 km"
Explanation :

Answer: D) 4 3/8 km Explanation: Relative Speed = 5 ¾ - 4 ½ = 1 ¼ Time = 3 ½ h. Distance = 5/4 x 7/2 = 35/8 = 4 3/8 km.

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