GATE Questions

Q:

The length and the breadth of rectangular field are in the ratio of 8 : 7. If charges of the painting the boundary of rectangle is at Rs. 10 per meter is Rs. 3000. What is the area of rectangular plot?

A) 5600 sq.m B) 1400 sq. m
C) 4400 sq.m D) 3600 sq.m
 
Answer & Explanation Answer: A) 5600 sq.m

Explanation:

Perimeter of the rectangle is given by 3000/10 = 300 mts

But we know,

The Perimeter of the rectangle = 2(l + b)

Now,

2(8x + 7x) = 300

30x = 300

x = 10

Required, Area of rectangle = 8x x 7x = 56 x 100 = 5600 sq. mts.

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Filed Under: Area
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19 4846
Q:

A batsman scored 180 runs which included 11 boundaries and 8 sixes. What percent of his total score did he make by running between the wickets ?

A) 62.45% B) 51.42%
C) 48.88% D) 47.32%
 
Answer & Explanation Answer: C) 48.88%

Explanation:

Number of runs made by running = 180 - (11 x 4 + 8 x 6)
= 180 - (92)
= 88
Now, we need to calculate 88 is what percent of 180.
88180×100  = 48.888%.

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Filed Under: Percentage
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5 4844
Q:

2, 16, 3, 81, 4, ?

A) 99 B) 125
C) 256 D) 396
 
Answer & Explanation Answer: C) 256

Explanation:

The given number series is 2, 16, 3, 81, 4, ?

2

2^4 = 16

3

3^4 = 81

4

4^4 = 256

 

Hence, the next number is 256.

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Filed Under: Number Series
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12 4842
Q:

Which team became the first team in history to win 100 T20 matches  ?

A) Sunrisers Hyderabad B) Bangalore Royal Challengers
C) Kolkata Knight Riders D) Mumbai Indians
 
Answer & Explanation Answer: D) Mumbai Indians

Explanation:

Two times IPL champions Mumbai Indians (MI) reached a new milestone as they became the first team in history to win 100 T20 matches. The Mumbai outfit defeated Kolkata Knight Riders (KKR) at the Eden Gardens by 9 runs in their final match of the league stage of IPL 2017.

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Filed Under: Sports
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12 4839
Q:

By investing Rs. 1620 in 8% stock, Michael earns Rs. 135. The stock is then quoted at ?

A) Rs. 145 B) Rs. 245.1
C) Rs. 96 D) Rs. 75
 
Answer & Explanation Answer: C) Rs. 96

Explanation:

Michel earns Rs. 135 by investing Rs. 1620
To earn Rs. 8 how much he have to invest...?

= (8 x 1620)/135 = Rs. 96

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Filed Under: Stocks and Shares
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8 4834
Q:

Find the Missing Number Puzzle for the Given

number011517998001.jpg image

A) 8 B) 16
C) 9 D) 12
 
Answer & Explanation Answer: C) 9

Explanation:

Given

 

6 = 3 => Number of letters in SIX = 3

 

12 = 6 => Number of letters in TWELVE = 6

 

14 = 8 => Number of letters in FOURTEEN = 8

 

Similarly,

 

22 = 9 => Number of letters in TWENTY TWO = 9

 

 

 

 

 

Therefore, 22 = 9.

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18 4834
Q:

A class consists of both boys and girls along with a teacher. After a class, the teacher drinks 9 litres of water, a boy drinks 7 litres of water and a girl drinks 4 litres of water. If after a class 42 litres of water was consumed, find the number of girls in the class ?

A) 8 B) 6
C) 5 D) 3
 
Answer & Explanation Answer: D) 3

Explanation:

Given teacher drinks 9 ltr
Let number of boys be 'A'.
Let number of girls be 'B'.
Boy drinks 7 ltr and girl drinks 4 ltr
After class total water consumed = 42 ltr
Then,
9 + 7A + 4B = 42
=> 7A + 4B = 33
By trial and error method,
The only integers which satisfy the equation is A = 3 and B = 3
Therefore, number of girls in the class = 3.

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Filed Under: Simplification
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6 4827
Q:

The antiseptic compound present in dettol is

A) Biothional B) Cresol
C) Iodine D) Enloroxylenol
 
Answer & Explanation Answer: D) Enloroxylenol

Explanation:

The antiseptic compound present in dettol is Enloroxylenol.

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Filed Under: General Science
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6 4827