GATE Practice Question and Answer

Q: Q's mother is sister of P and daughter of M who is brother of R. S is daughter of P and sister of T. How is M related to T ? 2234 0

  • 1
    Grand father
    Correct
    Wrong
  • 2
    Grand mother
    Correct
    Wrong
  • 3
    Grand father or Grand mother
    Correct
    Wrong
  • 4
    Can't be determined
    Correct
    Wrong
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Answer : 1. "Grand father"
Explanation :

Answer: A) Grand father Explanation: Q's mother is sister of P and daughter of M => P is the child of M.S is daughter of P and sister of T, so P is parent of T too.M ----> parent --------> P ------------>parent -------------> TBut given M is brother of R => M is male. So, M is grandfather of T.

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Answer : 2. "Only a follows"
Explanation :

Answer: B) Only a follows Explanation: The proper nourishment will make the monkeys or human beings work properly. So, the course of action I follows. Course of action II does not follow as there is no information about captive or wild monkeys.

Q: There are six persons 1, 2, 3, 4, 5 and 6. 3 is the sister of 6. 2 is the brother of 5's husband. 4 is the father of 1 and grandfather of 6. There are two fathers, three brothers and a mother in the group. Which of the following is a group of brothers ? 2230 0

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

Answer: D) 1, 2, 6 Explanation: 4 is father of 1 and grandfather of 6. So, 1 is father of 6. Thus, 4 and 1 are the two fathers. 3 is the sister of 6. So, 3 is the daughter of 1. Since there is only one mother, it is evident that 5 is the wife of 1 and hence the mother of  3 and 6. So, 2 is brother of 1. There are three brothers. So, 6 is the brother of 3. Hence, 2 and 1 are brothers. 6 is the brother of 3. So, three brothers are 1, 2, 6.

Q: Given that 100.48 = x,  100.70 = y and xz = y2,  then the value of z is close to ___ ? 2227 0

  • 1
    3.7
    Correct
    Wrong
  • 2
    2.7
    Correct
    Wrong
  • 3
    3.6
    Correct
    Wrong
  • 4
    2.9
    Correct
    Wrong
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Answer : 4. "2.9"
Explanation :

Answer: D) 2.9 Explanation: xz = y2        10(0.48z) = 10(2 x 0.70) = 101.40  0.48z = 1.40  z = 140/18 = 35/12 = 2.9 (approx.)

Q: A,B,C together can do a piece of work in 10 days.All the three started workingat it together and after 4 days,A left.Then,B and C together completed the work in 10 more days.In how many days can complete a work alone ? 2227 0

  • 1
    25
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    23
    Correct
    Wrong
  • 4
    21
    Correct
    Wrong
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Answer : 1. "25"
Explanation :

Answer: A) 25 Explanation: (A+B+C) do 1 work in 10 days. So (A+B+C)'s 1 day work=1/10 and as they work together for 4 days so workdone by them in 4 days=4/10=2/5 Remaining work=1-2/5=3/5   (B+C) take 10 more days to complete 3/5 work. So( B+C)'s 1 day work=3/50 Now A'S 1 day work=(A+B+C)'s 1 day work - (B+C)'s 1 day work=1/10-3/50=1/25 A does 1/25 work in in 1 day Therefore 1 work in 25 days.

Q: Cassock : Priest :: ? : Graduate 2227 0

  • 1
    Gown
    Correct
    Wrong
  • 2
    Tie
    Correct
    Wrong
  • 3
    Cap
    Correct
    Wrong
  • 4
    Coat
    Correct
    Wrong
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Answer : 1. "Gown"
Explanation :

Answer: A) Gown Explanation: A Christian Priest wears cassock while a Graduate wears gown.   Hence, Cassock : Priest :: Gown : Graduate.

Q: A sum is divided among K, L and M in such a way that for each rupee K gets, L gets 45 paisa and M gets 30 paisa. If the share of L is Rs. 27,  what is the total amount  ? 2226 0

  • 1
    Rs. 159
    Correct
    Wrong
  • 2
    Rs. 96
    Correct
    Wrong
  • 3
    Rs. 147
    Correct
    Wrong
  • 4
    Rs. 105
    Correct
    Wrong
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Answer : 4. "Rs. 105"
Explanation :

Answer: D) Rs. 105 Explanation: K : L : M = 100 : 45 : 30              = 20 : 9 : 6 Given L share is 27 => 9  ------  27      35 ------  ?       => 105

Q: A and B started a business investing the money in ratio 4:6, after 6 months B withdraw his investment and C joins him with twice the amount of B. At the end of the year total profit is Rs.3315. Find share of C ? 2225 0

  • 1
    Rs. 450
    Correct
    Wrong
  • 2
    Rs. 1020
    Correct
    Wrong
  • 3
    Rs. 765
    Correct
    Wrong
  • 4
    Rs. 1530
    Correct
    Wrong
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Answer : 4. "Rs. 1530"
Explanation :

Answer: D) Rs. 1530 Explanation: Ratio of investments of A, B & C => Share of C = 1530 Share of B = 765 Share of A = 1020

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