GATE Practice Question and Answer

Q: 4 men can repair a road in 7 hours. How many men are required to repair the road in 2 hours ? 10466 0

  • 1
    17 men
    Correct
    Wrong
  • 2
    14 men
    Correct
    Wrong
  • 3
    13 men
    Correct
    Wrong
  • 4
    16 men
    Correct
    Wrong
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Answer : 2. "14 men"
Explanation :

Answer: B) 14 men Explanation: M x T / W = Constantwhere, M= Men (no. of men)T= Time takenW= Work loadSo, here we applyM1 x T1/ W1 = M2 x T2 / W2Given that, M1 = 4 men, T1 = 7 hours ; T2 = 2 hours, we have to find M2 =?Note that here, W1 = W2 = 1 road, ie. equal work load.Clearly, substituting in the above equation we get, M2 = 14 men.

Q: Tennis is to Sport as Chemistry is to 10075 0

  • 1
    Biology
    Correct
    Wrong
  • 2
    Physics
    Correct
    Wrong
  • 3
    Science
    Correct
    Wrong
  • 4
    Subject
    Correct
    Wrong
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Answer : 3. "Science"
Explanation :

Answer: C) Science Explanation: As Tennis is a kind of Sport, similarly, Chemistry is a kind of science.   Hence, Tennis : Sport :: Chemistry : Science.

Q: What is the right most integer of the expression 65776759 + 54697467  ? 9956 0

  • 1
    4
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 3. "9"
Explanation :

Answer: C) 9 Explanation: Last digit for the power of 6 is 6 (always) Power cycle of 7 is 7, 9, 3, 1. Now 467/4 gives a remainder of 3 Then the last digit is 73 = 3 Last digit is 6 + 3 = 9.

Q: A and B began business with Rs.3000 and Rs.4000 after 8 months, A withdraws Rs.1000 and B advances Rs.1000 more. At the end of the year, their profits amounted to Rs.630 find the share of A ? 9839 0

  • 1
    Rs. 240
    Correct
    Wrong
  • 2
    Rs. 75
    Correct
    Wrong
  • 3
    Rs. 125
    Correct
    Wrong
  • 4
    Rs. 354
    Correct
    Wrong
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Answer : 1. "Rs. 240"
Explanation :

Answer: A) Rs. 240 Explanation: The ratio of A & B investments = (3x8 + 2x4):(4x8 + 5x4) => 8:13 => 8/21 x 630 = 240.

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Answer : 2. "&N4 and @E9"
Explanation :

Answer: B) &N4 and @E9 Explanation: plan is given in first step. Total count of letters is 4 and last letter is N and ‘p’ is coded as & so Final answer will be-  &N4 We have to find 'translate' code. As we can see that this word is not given in any steps but as we know the idea of that so we can solve it. Step I: first we will count the letters of that word that is 9, then we put digit 9 at the right end. Step II: we will put the last letter of that word then it will like- E9 Step III: at the last step ‘t’ is coded for ‘@’(first letter of each word is coded by a specific symbol like here ‘t’ is coded for ‘@’. We can find the first coded symbol by looking at the other given words. Answer will be - @E9

Q: 9 men and 12 boys finish a job in 12 days, 12 men and 12 boys finish it in 10 days. 10 men and 10 boys shall finish it in how many days ? 9187 0

  • 1
    15 days
    Correct
    Wrong
  • 2
    11 days
    Correct
    Wrong
  • 3
    14 days
    Correct
    Wrong
  • 4
    12 days
    Correct
    Wrong
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Answer : 4. "12 days"
Explanation :

Answer: D) 12 days Explanation: 9M + 12B ----- 12 days ...........(1)12M + 12B ------- 10 days........(2)10M + 10B -------?108M + 144B = 120M +120B24B = 12M => 1M = 2B............(3) From (1) & (3) 18B + 12B = 30B ---- 12 days 20B + 10B = 30B -----? => 12 days.

Q: How is Radha's mother's mother's daughter-in-law's daughter related to Radha? 9043 0

  • 1
    Sister-in-law
    Correct
    Wrong
  • 2
    Sister
    Correct
    Wrong
  • 3
    Neice
    Correct
    Wrong
  • 4
    Aunt
    Correct
    Wrong
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Answer : 1. "Sister-in-law"
Explanation :

Answer: A) Sister-in-law Explanation: Radha ----> Radha's mother ------> Mother's mother => Radha's Grand-mother.   Radha's Grand-mother's daughter-in-law ------> Radha's Aunt -----> Radha's Aunt's daughter => Radha's sister-in-law.

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