GATE Questions

Q:

A starts a business, after 6 months B also join him with Rs.4500 and after 2 months of B’s joining C also join them with Rs.4500. If A gets approx. Rs 4900 out of total annual profit of Rs. 10,000 then find the approximate value of initial investment of A.

A) Rs.4800 B) Rs.4200
C) Rs.3600 D) Rs.4400
 
Answer & Explanation Answer: C) Rs.3600

Explanation:

Let initial investment of A = x
Ratio of profit A : B : C = 12 × x : 6×4500 :4×4500
A :B:C = x : 2250: 1500
Now ATQx/(x+2250+1500) = 4900/10000
solving this we get,x ≈ Rs 3600

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1 2986
Q:

Recently deleted files are stored in

A) Taskbar B) My Computer
C) Recycle Bin D) Desktop
 
Answer & Explanation Answer: C) Recycle Bin

Explanation:

Deleted files are not permanently removed from the hard drive or the computers memory. Before they are permanently removed from the system they are stored in Recycle Bin. Recycle Bin is a folder or directory where deleted items are temporarily stored. It is also called as trash.

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6 2983
Q:

Acceptable noise level for human ear

A) > 85 db B) = 85 db
C) < 85 db D) None of the above
 
Answer & Explanation Answer: C) < 85 db

Explanation:

Sound intensity or level is measured by a unit called a decibel. An 85 decibel noise level is not a safe standard for the public.

 

Hence, Acceptable noise level for human ear is less than 85 db.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

2 2981
Q:

which is a best way to measure Ground Distance?

Answer

Pace Count is a way to measure to Ground Distance.


Pace Count is nothing but regular single natural step of about 30 inches long.

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Subject: Physics Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank PO

7 2980
Q:

As water is cooled from 4 deg C to 0 deg C, its density

A) increases B) decreases
C) remains same D) None of the above
 
Answer & Explanation Answer: B) decreases

Explanation:

As water is cooled from 4 deg C to 0 deg C, the water reaches its freezing point and starts forming ice crystals. Then the volume of that ice cubes increases and its density decreases. Hence, it is the reason that ice will float on water as ice has less density than the water.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

6 2979
Q:

Synchronous motor can operate at

A) Lagging power factor only B) Unity power factor only
C) Leading power factor only D) At any power factor
 
Answer & Explanation Answer: D) At any power factor

Explanation:

synchronous motor can operate at lag lead and unity power factor also why because it is mainly depends on excitation

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Filed Under: General Awareness
Exam Prep: CAT , GATE , GRE , TOEFL
Job Role: Bank Clerk , Bank PO

0 2978
Q:

What's at the end of a rainbow?

Answer

The letter 'W' is at the end of a rainbow.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

14 2977
Q:

5 Digits Number?

What 5-digit number has the following features:

If we put the numeral 1 at the beginning, we get a number three times smaller than if we put the numeral 1 at the end of the number.

Answer

We can make an equation:


3(100000 + x) = 10x+1


(Why? Well, adding 100000 puts a 1 at the front of a five-digit number, and multiplying by 10 and adding 1 puts a 1 at the end of a number)


Solving this gives:


10x+1 = 3(100000 + x)
10x+1 = 300000 + 3x
10x = 299999 + 3x
7x = 299999
x = 299999/7 = 42857


The answer is 42857 (142857 is three times smaller than 428571).

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