Sudo GATE 2020 Mock I (27 December 2019)


Question 1
I am a ________reader. I have read many books.
A
lively
B
tasty
C
delicious
D
magnificent
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 1 Explanation: 

lively: full of life and energy; active and outgoing. tasty: (of food) having a pleasant, distinct flavour. delicious: highly pleasant to the taste. magnificent: extremely beautiful, elaborate, or impressive. So, option (A) is correct choice.
Question 2
Which of the following is grammatically incorrect ?
A
Whom did you talk to at the information desk at the airport?
B
No animal has yet been discovered that can “see” infrared light with its eyes.
C
Lying there in the half-dark of my room, I could see my shelf, with my books-some of them prizes I had won in high school.
D
Haven’t none of you seen my dog?
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 2 Explanation: 
In sentence, "Haven’t none of you seen my dog?" This is a double negative as written. With the negative “Haven’t” goes “any,” not “none.” Option (D) is correct.
Question 3
It will take all of your energy and will to be able to walk again. 
Which of the following is the noun used in above sentence ?
A
Take
B
All
C
Your
D
Energy
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 3 Explanation: 
Energy is a noun, as is will here. Take (A) is a verb. All (B) is an adverb modifying take. Your (C) is an adjective modifying energy and will. Option (D) is correct.
Question 4
A mother is five times the age of her daughter. If after 5 years mother's age would be three times of daughter's age, then further after 10 years, how many times mother's age would of her daughter's age?
A
1.5 times
B
2 times
C
2.5 times
D
3 times
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 4 Explanation: 
Let present age of Mother is M and present age of daughter is D.
M/D = 5/1 
And,
(M+5)/(D+5) = 3/1 
Solve for M and D,
M+5 = 3D+15
5D+5 = 3D+15
2D=10 
We get,
D=5 and M=25 
Further after 10 years daughter age will be
= 5+5+10 = 20 years 
And, mother age will be = 25+5+10 = 40 years Hence, mother's age would be 40/20=2 times higher than that age of her daughter. Option (B) is correct.
Question 5
There are 6 blue marbles, 3 red marbles, and 5 yellow marbles in a bag. What is the probability of selecting a blue or red marble on the first draw ?
A
1/3
B
4/7
C
9/14
D
11/14
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 5 Explanation: 
There are 6 blue marbles and 3 red marbles for a total of 9 desired outcomes. Add the total number of marbles to get the total number of possible outcomes, 14. The probability that a red or blue marble will be selected is 9/14. Option (C) is correct.
Question 6
A number x is said to be the harmonic mean of y and z if 1/x is the average of 1/y and 1/z. Harmonic mean of 30 and 45 is _____________ .
A
37.5
B
72
C
18
D
36
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 6 Explanation: 
Let a = 1/y and b = 1/z. The average of a, b is,
= (a+b)/2 = (1/y+1/z)/2 = (y+z)/(2yz) 
The Harmonic mean x is the reciprocal of this average so,
x = (2yz)/(y+z) 
Given,
y = 30, z = 45 
Therefore,
x = (2yz)/(y+z) = (2×30×45)/(30+45) = 36 
Option (D) is correct.
Question 7
Consider the following paragraph: "For nearly two years Dever's doctors were puzzled. Just seventeen months before the 1992 Olympics, her sickness was so serious that doctors considered amputating both her feet. They eventually determined that she suffered from Graves's disease. This rare and mysterious illness affects the thyroid gland, which is located in the side of the neck. Doctors treated Devers for her illness, and she slowly recovered. Then she won three Olympic gold medal." The following statements best reflects the author’s opinion in order to ____________ .
A
make readers understand how difficult it is prepare for the Olympics.
B
convince readers that Devers is greatest Olympic athlete ever.
C
emphasize that Devers's accomplishments were extraordinary.
D
raise awareness about a deadly disease and how to overcome it.
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 7 Explanation: 
Emphasize that Devers's accomplishments were extraordinary, because not only did Devers win three Olyapic gold medals, but also she overcome a serious illness, one that had her to stop running and even threatened her life. Option (C) is correct.
Question 8
A box contains Rs 350 in the form of coins of one rupees, 50 paise and 25 paise. The number of 25 paise coins is double the number of one rupee coins and four times the number of 50 paise coins. How many 25 paise coins are there in the box?
A
200
B
300
C
400
D
500
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 8 Explanation: 
Given ratio of coins,
25 paise        50 paise       100 paise
  4x       :       1x        :      2x
So,
4x *25  + 1x * 50 + 2x * 100 = 35000
100x + 50x + 200x = 35000
350x = 35000
x = 100 
So, number of 25 paise coins = 4x = 4*100 = 400. Option (C) is true.
Question 9
Solve:
1/logab(abcd) + 1/logbc(abcd) + 1/logcd(abcd) + 1/logda(abcd) 
A
10
B
1
C
4
D
2
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 9 Explanation: 
= logabcd(ab) + logabcd(bc) + logabcd(cd) + logabcd(da)
= logabcd(ab * bc * cd * da)
= logabcd(abcd)2
= 2 logabcd(abcd)
= 2 
So, option (D) is correct.
Question 10
In the pie-chart and table details of percentage of employees working in various departments in an organization and number of males among them is given respectively. Total number of employees = 1200
Total number of females in IT department and Marketing department is ___________ .
A
299
B
288
C
289
D
301
Sudo GATE 2020 Mock I (27 December 2019)    
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Question 10 Explanation: 
Total number of employees in IT is,
20% = 20/100*1200 = 240 
Number of females in IT,
= 240 - 74 = 166 
Total number of employees in Marketing,
= 24% = 24*12 = 288 
Number of females in Marketing
= 288 - 165 = 123 
Total number of females in IT department and Marketing department,
= 166 + 123 = 289 
So, option (C) is correct.
There are 65 questions to complete.
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