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Q:

A shopkeeper has a job to print certain number of documents and there are three machines P, Q and R for this job. P can complete the job in 3 days, Q can complete the job in 4 days and R can complete the job in 6 days. How many days the shopkeeper will it take to complete the job if all the machines are used simultaneously ?

A) 4/3 days B) 2 days
C) 3/2 days D) 4 days
 
Answer & Explanation Answer: A) 4/3 days

Explanation:

Let the total number of documents to be printed be 12.

 The number of documents printed by P in 1 day = 4.

 The number of documents printed by Q in 1 day = 3.

 The number of documents printed by R in 1 day = 2.

 
Thus, the total number of documents that can be printed by all the machines working simultaneously in a single day = 9.

 

Therefore, the number of days taken to complete the whole work = 12/9 = 4/3 days.

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Filed Under: Time and Work
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

4 3880
Q:

I have three eyes but only one leg.

I still close one even if you beg. 

What am I?

Answer

A traffic light.


It has three 'eyes' (the red, orange and green lights) and the leg is the pole holding it up. Many people beg the light to stay green as they’re approaching.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

2 3879
Q:

A decision committee of 5 members is to be formed out of 4 Actors, 3 Directors and 2 Producers. In how many ways a committee of 2 Actors, 2 Directors and 1 Producer can be formed ?

A) 18 B) 24
C) 36 D) 32
 
Answer & Explanation Answer: C) 36

Explanation:

Required Number of ways = 4C2 × 3C2 × 2C1 = 36 = 36

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Filed Under: Permutations and Combinations
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17 3879
Q:

Which of the following is an example of system software?

A) Microsoft word B) Calculator
C) Operating system D) RAM
 
Answer & Explanation Answer: C) Operating system

Explanation:

In a brief, the system software is the interface between the hardware and user applications. System software is a type of computer program that is designed to run a computer’s hardware and application programs.

 

Examples : OS, System utilities, BIOS like mouse, keyboard, hard disc, Device drivers, Assembler,...

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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams , CAT
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4 3878
Q:

Excel displays the current cell address in the

A) Title Bar B) Name Box
C) Status Bar D) Formula bar
 
Answer & Explanation Answer: B) Name Box

Explanation:
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Filed Under: Computer
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3 3874
Q:

Sukhna Lake is in which city?

A) Jaipur B) Chandigarh
C) Hyderabad D) Pune
 
Answer & Explanation Answer: B) Chandigarh

Explanation:

Sukhna Lake is in Chandigarh, India.

 

It is a reservoir at the foothills of the Himalayas. It covers an area of 3 km². This rainfed lake was created in 1958 by damming the Sukhna Choe, a seasonal stream coming down from the Shivalik Hills.

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Filed Under: Indian Geography
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11 3874
Q:

Why are hydrocarbons insoluble in water?

Answer

We know that polar substances are soluble in polar solvents and non polar substances are soluble in non-polar solvents only. Here the hydrocarbons are non-polar molecular substances and water is a polar solvent. So water can't dissolve hydrocabons.


 


Hence, as hydrocarbons are non-polar substances, they are insoluble in water as it is a highly polar solvent. 

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Subject: Chemistry Exam Prep: AIEEE , Bank Exams
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2 3874
Q:

Disinvestment means-

A) To reduce government share in the FDI B) To reduce the government share in the public sector
C) To reduce government share in Market D) To reduce the government share in the private sector
 
Answer & Explanation Answer: B) To reduce the government share in the public sector

Explanation:

Disinvestment is the action of an organization or government selling or liquidating an asset or subsidiary.

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Filed Under: Bank Interview
Exam Prep: Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

9 3870