GATE Questions

Q:

The first stage in the formation of coal is

A) Lignite B) Bituminous
C) Anthracite D) Peat
 
Answer & Explanation Answer: D) Peat

Explanation:

The first of the four stages of coal formation is lignite coal.

 

There are four stages of coal formation:

 

1. Peat,

 

2. Lignite,

 

3. Bituminous and

 

4. Anthracite.

The bacteria has removed a large portion of the other constituents of the plant matter and left around 25 to 34 percent.

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Filed Under: General Science
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8 3745
Q:

K can finish the work in 18 days and L can do the same work in 15 days. L worked for 10 days and left the job. In how many days, K alone can finish the remaining work ?

A) 5.5 days B) 6 days
C) 4.2 days D) 5 days
 
Answer & Explanation Answer: B) 6 days

Explanation:

L's 10 days work = 115×10=23

 


Remaining work = 1-23=13

 


Now,  work is done by K in one day = 1/18

 

1/3 work is done by K in  18×13 = 6 days

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Filed Under: Time and Work
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5 3740
Q:

The famous hill-station Kodaikanal lies in

A) Palani hills B) Javadi hills
C) Nilgiri hills D) Cardamom hills
 
Answer & Explanation Answer: A) Palani hills

Explanation:

The famous hill-station Kodaikanal lies in Palani hills.

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Filed Under: Indian Geography
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0 3740
Q:

36 of what number is 18?

A) 38 B) 42
C) 50 D) 62
 
Answer & Explanation Answer: C) 50

Explanation:

Let the required number be 'p'

36 of what number is 18 implies 36% of p = 18

=> 36 x p/100 = 18

=> p = 1800/36

=> p = 50.

 

Hence, 36% of 50 is 18.

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Filed Under: Percentage
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9 3737
Q:

Dot cabs company provides cabs for software employees. The company has 8 Swift dzires, 6 Scorpios, 7 Innovas and few small cars. If Swift dzire makes one fourth of the total fleet, how many small cars are there in the company ?

A) 9 B) 10
C) 11 D) 12
 
Answer & Explanation Answer: C) 11

Explanation:

Given the company has 8 SD + 6 SRP + 7 IN = 21 cars + 'x' small cars.
Given SD makes 1/4 th of the total fleet.
=> 8 = 1/4 (21 + x)
=> 32 = 21 + x
=> x = 11
Therefore, the company has 11 small cars.

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Filed Under: Percentage
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3 3735
Q:

In which year was the Supreme Court of India established?

A) 1951 B) 1949
C) 1950 D) 1947
 
Answer & Explanation Answer: C) 1950

Explanation:

The Supreme Court of India was established in the year 1950.

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Filed Under: Indian Politics
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22 3734
Q:

Using numbers from 0 to 9 the number of 5 digit telephone numbers that can be formed is

A) 1,00,000 B) 59,049
C) 3439 D) 6561
 
Answer & Explanation Answer: C) 3439

Explanation:

The numbers 0,1,2,3,4,5,6,7,8,9 are 10 in number while preparing telephone numbers any number can be used any number of times.

 

This can be done in 105ways, but '0' is there

 

So, the numbers starting with '0' are to be excluded is 94 numbers.

 

 Total 5 digit telephone numbers = 105- 94 = 3439

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Filed Under: Permutations and Combinations
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5 3730
Q:

India's longest cable-bridge inaugurated by PM Modi in which state ?

A) Assam B) Telangana
C) Gujarat D) Karnataka
 
Answer & Explanation Answer: C) Gujarat

Explanation:

PM Modi Inaugurated India's Longest Cable Bridge in Gujarat, a four-lane bridge over the river Narmada in Bharuch. The bridge is 1344 metres long and 22.8 metres wide. It is built by Larsen and Turbo as a part of the Rs. 379 crore project of the National Highway Authority of India.

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Filed Under: Longest, Shortest, Deepest
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7 3729