GATE Practice Question and Answer

Q: Simplify 39.96% of 649.85 ÷13.07 = 45.14 - ? 1692 0

  • 1
    25
    Correct
    Wrong
  • 2
    26
    Correct
    Wrong
  • 3
    27
    Correct
    Wrong
  • 4
    28
    Correct
    Wrong
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Answer : 1. "25"
Explanation :

Answer: A) 25 Explanation: This can be easily simplified by Approximation process Given 39.96% of 649.85 ÷13.07 = 45.14 - ? can be written as  40% of 650 ÷13 = 45 - ?   40 x 65010013 = 45 - ?? = 45 - 20? = 25.

Q: At what time, between 3 o’clock and 4 o’clock, both the hour hand and minute hand coincide each other  ? 1691 0

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    3:16 7/11
    Correct
    Wrong
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    3:16 11/4
    Correct
    Wrong
  • 3
    3:30
    Correct
    Wrong
  • 4
    3:16 4/11
    Correct
    Wrong
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Answer : 4. "3:16 4/11"
Explanation :

Answer: D) 3:16 4/11 Explanation: Coincide means 00  angle. This can be calculated using the formulafor time A to B means  [11m/2 - 30 (A)] Here m gives minutes after A the both hands coincides. Here A = 3, B = 4 0 =11m/2 –30 × 311m = 90 × 2 = 180m= 180/11 = 16 4/11 So time = 3 : 16 4/11

Q: A is 30% more efficient than B. How much time will they, working together, take to complete a job which A alone could have done in 23 days  ? 1691 0

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    9 days
    Correct
    Wrong
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    11 days
    Correct
    Wrong
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    13 days
    Correct
    Wrong
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    15 days
    Correct
    Wrong
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Answer : 3. "13 days"
Explanation :

Answer: C) 13 days Explanation: Ratio of times taken by A and B = 100 : 130 = 10 : 13.Suppose B takes x days to do the work. Then, 10 : 13 :: 23 : x     =>     x = ( 23 x 13/10 )     =>     x = 299 /10. A's 1 day's work = 1/23 ;B's 1 day's work = 10/299 . (A + B)'s 1 day's work = ( 1/23 + 10/299 ) = 23/299 = 113 . Therefore, A and B together can complete the work in 13 days.

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Answer :
Explanation :

Let the present age's of mother be 'M' and that of her son be 'S'. According to the given data in the question, M - 5 = 3(S - 5) F - 3S = -10  ...............(1) Then given , M + 5 : S + 5 = 11 : 5  => 5M - 11S = 30 ..............(2)   From (1) & (2), we get S = 20 Then by substituting S = 20 in (1) or (2), we get M = 50.   Hence, the present age of mother is M = 50 years.

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Answer :
Explanation :

The Riddle itself has the Answers. What is a 4 letter word Yet is written in 3 letters Everything is written with 9 letters Then with 4 letters Rarely has 6 letters Never is written in 5 letters.

Q: Find the odd one out of the following number series? 56, 64, 48, 90, 16, 144 1691 0

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    48
    Correct
    Wrong
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    64
    Correct
    Wrong
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    90
    Correct
    Wrong
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    16
    Correct
    Wrong
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Answer : 3. "90"
Explanation :

Answer: C) 90 Explanation: The given number series follows a pattern that, 56 56 + 8 = 64 64 - 16 = 48 48 + 32 = 80 (Not equal to 90) 80 - 64 = 16 16 + 128 = 144    Hence, the odd number in the given number series is 90.

Q: How many squares with sides 1/2 inch long are needed to cover a rectangle that is 4 ft long and 4 ft wide ? 1689 0

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    9216
    Correct
    Wrong
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    10246
    Correct
    Wrong
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    12345
    Correct
    Wrong
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    7527
    Correct
    Wrong
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Answer : 1. "9216"
Explanation :

Answer: A) 9216 Explanation: It takes four of those little squares -- each one 1/2 inch on a side -- to cover one square inch. That's because each one is 1/2 x 1/2, or 1/4 of a square inch. In a rectangle that is 48 inches by 48 inches, there are 2304 square inches.(1 ft = 12 inches) Since it takes 4 little squares to cover 1 sq inch, then it would need 2304 x 4 squares (1/2 inch on a side each) to cover a rectangle 4 feet by 4 feet. That is 9,216 of those squares.

Q: Who has become the 1st woman player from Jharkhand who has been awarded Dhyan Chand Award 2017  ? 1687 0

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    Poonam Rani
    Correct
    Wrong
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    Samurai Tete
    Correct
    Wrong
  • 3
    Monika Malik
    Correct
    Wrong
  • 4
    Navjot Kaur
    Correct
    Wrong
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Answer : 2. "Samurai Tete"
Explanation :

Answer: B) Samurai Tete Explanation: The Apex body for The national sport Hockey India pitched Jharkhand's Samurai Tete, former Team India skipper, for the Dhyan Chand Lifetime Achievement Award 2016. Sumrai Tete is a member of the India women's national field hockey team. She played with the team when it won the Gold at the Manchester 2002 Commonwealth Games.

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