GATE Questions

Q:

12 students of class IX took part in GK quiz. If the number of boys is 4 more than the number of girls. Find the number of boys and girls took part in the quiz ?

A) 7, 5 B) 9, 3
C) 8, 4 D) 6, 6
 
Answer & Explanation Answer: C) 8, 4

Explanation:

Let the number of girls = x

=> x + x + 4 = 12

=> 2x = 8

=> x = 4

=> Number of girls = 4

=> Number of boys = 4 + 4 = 8

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Filed Under: Problems on Numbers
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16 3029
Q:

Which of the following is a Heterogeneous Mixture?

A) Air B) Table salt
C) Soda D) Brass
 
Answer & Explanation Answer: C) Soda

Explanation:

Here Soda is a Heterogenous Mixture.

 

A Heterogeneous Mixture is a mixture having a non-uniform composition i.e, the mixture contains components in different phases. Using various means, the parts in the mixture can be separated from one another.

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Filed Under: Physics
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9 3027
Q:

Operating system functions may include

A) multiprogramming B) input/output control
C) virtual storage D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

An operating system has three main functions:

(1) manage the computer's resources, such as the central processing unit, memory, disk drives, and printers,

(2) establish a user interface, and

(3) execute and provide services for applications software.

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5 3027
Q:

Updated List of Cabinet Ministers of India in September 2017 ?

Answer

Sr. No             Minister                         Portfolio


 1.           Shri Narendra Modi         Prime Minister and also in-charge of:


                                                           – Ministry of Personnel
                                                            – Public Grievances and Pensions
                                                            – Department of Atomic Energy
                                                            – Department of Space


  All important policy issues and all other portfolios not allocated to any Minister.


  2.           Shri Raj Nath Singh         Minister of Home Affairs


  3.           Smt. Sushma Swaraj       Minister of External Affairs


  4.           Shri Arun Jaitley            -  Minister of Finance


                                                    – Minister of Corporate Affair


 5.           Shri Nitin Jairam Gadkari   – Minister of Road Transport & Highway


                                                      – Minister of shipping 


                                                      – Minister of Water Resources, River Development & Ganga Rejuvenation


 6.           Suresh Prabhu                     Minister of Commerce & Industry


 7.           D.V Sadananda Gowda        Minister of Statistics & Programme Implementation


 8.           Sushri Uma Bharati             Minister of Drinking Water & Sanitation


 9.           Nirmala Sitharaman            Minister of Defence


 10.         Mukhtar Abbas Naqvi          Minister of Minority Affairs


 11.         Shri Ramvilas Paswan         Minister of Consumer Affairs, Food & Public Distribution


 12.         Maneka Sanjay Gandhi       Minister of Women & Child Development


 13.         Shri Ananth Kumar          – Minister of Chemicals & Fertilizers
                                                    – Ministry of Parliamentary Affairs


 14.         Shri. Ravi Shankar Prasad    – Minister of Law & Justice                                                                                                    – Minister of Electronics & Information Technology         


 15.         Shri Jagat Prakash Nadda      Minister of Health & Family Welfare


16.         Ashok Gajapathi Raju Pusapati     Minister of Civil Aviation


17.         Shri. Anant Geete                      Minister of Heavy Industries & Public Enterprises     


18.         Smt. Harsimrat Kaur Badal         Minister of Food Processing Industries


19.         Shri Narendra Singh Tomar         – Minister of Rural Development
                                                             – Minister of Panchayati Raj
                                                            – Minister of Drinking Water & Sanitation


20.         Shri Chaudhary Birender Singh      Minister of Steel


21.         Shri Jual Oram                              Minister of Tribal Affairs


22.         Shri Radha Mohan Singh                Minister of Agriculture & Farmers Welfare          


23.         Shri Thawar Chand Gehlot              Minister of Social Justice & Empowerment


24.         Smt. Smriti Irani                           – Minister of Textiles
                                                                – Minister of Information & Broadcasting            


25.         Dr Harsh Vardhan                         – Minister of Science & Technology
                                                                – Minister of Earth Sciences
                                                               – Minister of Environment, Forest & Climate Change


26.          Prakash Javadekar                        Human Resource Development


27.          Piyush Goyal                                 – Minister of Railways


                                                                – Minster of Coal


28.         Dharmendra Pradhan                     – Minister of Petroleum & Natural Gas


                                                               – Minister of Skill Development & Enterprise

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8 3026
Q:

If cost price of an article is 75% of its selling price, then what will be the profit percentage?

A) 23.47 B) 25
C) 33.33 D) 20
 
Answer & Explanation Answer: C) 33.33

Explanation:
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7 3025
Q:

The perimeter of a rectangle whose length is 6 m more than its breadth is 84 m. What will be the area of the rectangle?

A) 333 sq.mts B) 330 sq.mts
C) 362 sq.mts D) 432 sq.mts
 
Answer & Explanation Answer: D) 432 sq.mts

Explanation:

Let the breadth of the rectangle = b mts

Then Length of the rectangle = b + 6 mts

Given perimeter = 84 mts

2(L + B) = 84 mts

2(b+6 + b) = 84

2(2b + 6) = 84

4b + 12 = 84

4b = 84 - 12

4b = 72

b = 18 mts

=> Length = b + 6 = 18 + 6 = 24 mts

 

Now, required Area of the rectangle = L x B = 24 x 18 = 432 sq. mts

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Filed Under: Area
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20 3024
Q:

Which must be true for metamorphism to occur?

A) The parent rock must be in solid form. B) Tons of pressure must be applied.
C) The process must take place underground. D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

Metamorphism is the change of minerals or geologic texture in pre-existing rocks, without the protolith melting into liquid magma. The change occurs primarily due to heat, pressure, and the introduction of chemically active fluids.

 

The parent rock must be in solid form. Tons of pressure must be applied for metamorphism to happen. The process must take place underground.

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Filed Under: Physics
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5 3021
Q:

I am a 5 letter word.

I am normally below you. If you remove my 1st letter, you'll find me above you. If you remove my 1st & 2nd letters, you can't see me.

What am I?

Answer

Firstly, I focussed on "If you remove my 1st & 2nd letters, you can't see me". The first thing that comes to mind which we can’t see is the "AIR".


 


So now, what 4 letter words can be formed ending with "AIR"? Think of all the words from A to Z, considering which one lies above you. That is how we get to "HAIR".


 


Now, which 5 letter word can be formed ending with "HAIR"? Starting with A to Z, we reach "CHAIR" and also, it lies below us.


 


And the required answer is "CHAIR".

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4 3020