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Q:

12 boys decided to constribute Rs. 750 each to an Orphange. Suddenly few of them boys dropped out and consequently the rest had to pay Rs. 150 more. Then the number of boys who dropped out?

A) 4 B) 6
C) 2 D) 3
 
Answer & Explanation Answer: C) 2

Explanation:

Total money decided to contribute = 750 x 12 = 9000

Let 'b' boys dropped

The rest paid 150/- more

=> (12 - b) x 900 = 9000

=> b = 2

Hence, the number of boys who dropped out is 2.

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Filed Under: Average
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Q:

A term used interchangeably with diskette is

A) Floppy disk B) Disk pack
C) Disk cartridge D) Packette disk
 
Answer & Explanation Answer: A) Floppy disk

Explanation:

A term used interchangeably with diskette is Floppy disk.

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Filed Under: English
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Q:

A DBMS query language is designed to

A) Specify the structure of a database B) Support in the development of complex applications software
C) Support end users who use English-like commands D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Filed Under: SQL
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2 6781
Q:

A computer assisted method for the recording and analyzing of existing or hypothetical systems is

A) Data transmission B) Data capture
C) Data flow D) Data processing
 
Answer & Explanation Answer: C) Data flow

Explanation:
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Filed Under: Operating Systems
Job Role: Database Administration , IT Trainer

7 6725
Q:

Order of basicity of amines in gaseous state?

A) 2'> 1'> 3' > NH3 B) 3' > 2' > 1'> NH3
C) 1' > 2' > 3'> NH3 D) 2'> 3'> 1' > NH3
 
Answer & Explanation Answer: B) 3' > 2' > 1'> NH3

Explanation:

The order of basicity in ammonia is different in gaseous phases vs. aqueous phases due to hydrogen bonding.

 

So in gaseous phases it's the well known: 3' > 2' > 1'> NH3. Just so we're on the same page, this is due to the inductive effect of electron donating alkyl groups--they destabilize the lone pair on nitrogen atom, making nitrogen more basic.

 

But in aqueous phase, the order is slightly different: 2'> 1'> 3' > NH3.

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Filed Under: Chemistry
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Q:

What is so delicate that even mentioning it breaks it?

Answer

Silence is what is so delicate that even mentioning it breaks it.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
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8 6671
Q:

Which two method you need to implement for key Object in HashMap ?

Answer

In order to use any object as Key in HashMap, it must implements equals and hashcode method in Java.

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Subject: Java
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4 6577
Q:

What is always coming but never arrives?

Answer

It is Tomorrow. It always be tomorrow which represents coming but never arrives.

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Subject: Word Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE
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7 6568