GATE Questions

Q:

Odd man out of the series - 15, 19, 27, 38, 55, 75?

A) 27 B) 38
C) 55 D) 75
 
Answer & Explanation Answer: B) 38

Explanation:

The given series is 15, 19, 27, 38, 55, 75

15

15 + 4 = 19

19 + 8 = 27

27 + 12 = 39

39 + 16 = 55

55 + 20 = 75

 

Hence, the odd number in the given series is 38.

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Filed Under: Odd Man Out
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5 3162
Q:

Fuse Wire is Made of?

A) an alloy of Tin and Lead B) Nickel
C) Copper D) an alloy of Nickel and Lead
 
Answer & Explanation Answer: A) an alloy of Tin and Lead

Explanation:

Fuse Wire is Made of an alloy of Tin and Lead.

 

If too high a current flows, the element rises to a higher temperature and either directly melts, or else melts a soldered joint within the fuse, opening the circuit. Thefuse element is made of an alloy of Tin and Lead to provide stable and predictable characteristics.

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Filed Under: General Science
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9 3156
Q:

Chemical name of Gold?

A) Argentinum B) Ferrus
C) Aurum D) Selenium
 
Answer & Explanation Answer: C) Aurum

Explanation:

The Chemical name of Gold is Aurum with symbol Au with atomic number 79 and a group 11 element. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal.

Chemically, gold is a transition metal.

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Filed Under: Chemistry
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0 3153
Q:

In a bag, there are 8 red, 7 blue and 6 green flowers. One of the flower is picked up randomly. What is the probability that it is neither red nor green ?

A) 13

B)821

C)621

D)2021

A) Option A B) Option B
C) Option C D) Option D
 
Answer & Explanation Answer: A) Option A

Explanation:

Total number of flowers = (8+7+6) = 21.

 

Let E = event that the flower drawn is neither red nor green. 

= event taht the flower drawn is blue. 

 

--> n(E)= 7 

--> P(E)=  721=13 

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Filed Under: Permutations and Combinations
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8 3152
Q:

Twenty percent of Karthik’s monthly salary is equal to thirty two percent of Nikitha’s monthly salary. Vipin’s monthly salary is four fifth that of Nikitha’s monthly salary. If Vipin’s annual salary is Rs. 3.84 lakhs, what is Karthik’s monthly salary?

A) 32,000 B) 64,000
C) 40,000 D) 52,000
 
Answer & Explanation Answer: B) 64,000

Explanation:

From the given data,

20% of K = 32% of N

V = 4/5 N

 

Given Vipin's salary = 3.84 lpa = 3.84/12 = 32,000 per month

Now, N = 5/4 x 32000 = 40000

Now K = 32/20 x 40000 = 64000

 

Hence, karthik's monthly salary = Rs. 64000.

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Filed Under: Percentage
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10 3150
Q:

Which of the following sentences is grammatically correct?

A) We had gone to the party last night B) I have seen him yesterday
C) The hen has laid 10 eggs D) She is sleeping for 2 hours
 
Answer & Explanation Answer: C) The hen has laid 10 eggs

Explanation:

In the above given sentences, only option C) The hen has laid 10 eggs is gramatically correct.

 

A) Not correct - We had gone to the party last night

Correct - We went to the party last night

 

B) Not correct - I have seen him yesterday

Correct - I saw him yesterday (We do not use the present perfect tense with past time expressions.)

 

D) Not correct - She is sleeping for 2 hours

Correct - She has been sleeping for two hours. (We use the present perfect continuous tense to show duration.)

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Filed Under: English
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0 3149
Q:

Crack the code?

english1526360782.jpg image

Answer

STARTLING is a required 9 letter English word is still a word each time you remove a letter from the word. And how it is shown below: 


 


1. Remove the L, and the word becomes: STARTING


2. Remove one T, and the word becomes: STARING


3. Remove the A, and the word becomes: STRING


4. Remove the R, and the word becomes: STING


5. Remove the other T, and the word becomes: SING


6. Remove the G, and the word becomes: SIN


7. Remove the S, and the word becomes: IN


8. Remove the N, and the word becomes: I

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5 3146
Q:

Persistence of vision is the principle behind

A) Telescope B) Periscope
C) Cinema D) Microscope
 
Answer & Explanation Answer: C) Cinema

Explanation:

Optical illusion is what that refers to persistence of vision with a principle that multiple images blend into a single image in human mind and what is showed in cinema.

 

Hence, Persistence of vision is the principle behind cinema.

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Filed Under: Physics
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0 3144