IT Trainer Questions


Q:

In how many years, Rs. 200 will produce the same interest @ 5 % as Rs. 900 produce in 2 years @ 3 ½ %  ?

A) 5.2 yrs B) 7 yrs
C) 7.9 yrs D) 6.3 yrs
 
Answer & Explanation Answer: D) 6.3 yrs

Explanation:

P = Rs. 900, R = 3 ½ % = 7/2 %, T = 2 years. 

Therefore, 

S.I. = PTR/100

S.I. = Rs. (900 x 7/2 x 2/100) = Rs. 63

Now, P = Rs. 200, S.I. = Rs. 63, R = 5 %

Time = ((100 x 63) / (200 x 5) ) years = 6.3 years.

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Filed Under: Simple Interest
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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6 9700
Q:

In 1990 a person is 15 years old. In 2000 that same person is 5 years old. How can this be possible?

Answer

 It can be possible in only B.C. i.e, Before Christ. That was about 2000 years ago.


 Given, 


 In 1990 B.C = 2000 + 1990 = 3990 years ago, a person is 15 years Old  


=> In 1995 B.C = 2000 + 1995 = 3995 years ago, the same person will be 10 years Old 


Therefore, In 2000 B.C = 2000 + 2000 = 4000 years ago, the same person will be 5 years Old.

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48 9697
Q:

Data integrity constraints are used to

A) Ensure that duplicate records are not entered into the table B) Prevent users from changing the values stored in the table
C) Control who is allowed access to the data D) Improve the quality of data entered for a specific property like table column
 
Answer & Explanation Answer: D) Improve the quality of data entered for a specific property like table column

Explanation:

Integrity constraints are used to ensure accuracy and consistency of data in a relational database. Data integrity is handled in a relational database through the concept of referential integrity. Many types of integrity constraints play a role in referential integrity (RI).

 

Hence, Data integrity constraints are used to Improve the quality of data entered for a specific property i.e, table column.

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27 9598
Q:

A man can row against the current three fourth of a kilometer in 15 min and returns same distance in 10 min, then ratio of his speed to that of current?

A) 5:1 B) 3:1
C) 4:1 D) 2:1
 
Answer & Explanation Answer: A) 5:1

Explanation:

Let the speed of the man in still water = p kmph

Speed of the current = s kmph

Now, according to the questions

(p + s) x 10 = (p - s) x 15

2p + 2s = 3p - 3s

=> p : s = 5 : 1

 

Hence, ratio of his speed to that of current = 5:1.

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Filed Under: Boats and Streams
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24 9561
Q:

Pageant is most similar in meaning to

A) Show B) Gallant
C) Beauty D) Sovereign
 
Answer & Explanation Answer: A) Show

Explanation:

Pageant is most similar in meaning to Show.

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Filed Under: English
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0 9560
Q:

Who is the primary Author of HTML?

A) Sabeer Bhatiya B) Tim Berners-Lee
C) Brendan Eich D) Google Inc.
 
Answer & Explanation Answer: B) Tim Berners-Lee

Explanation:

The primary Author of HTML is Tim Berners-Lee, a scientist and academic, with the assistance of his colleagues at CERN, an international scientific organization based in Geneva, he did this. Berners-Lee invented the World Wide Web in 1989 at CERN.

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5 9550
Q:

18 tens 20 ones =

A) 1820 B) 180
C) 200 D) 160
 
Answer & Explanation Answer: C) 200

Explanation:

18 tens 20 ones, the given stateent can be split into

18 tens = 18 x 10 = 180

20 ones = 20 x 1 = 20

 

Then add both => 180 + 20 = 200

 

Hence, 18 tens 20 ones = 200.

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12 9547
Q:

The digital computer was developed primarily in

A) USA B) UK
C) Russia D) Japan
 
Answer & Explanation Answer: A) USA

Explanation:

A digital computer accepts, processes and outputs data in digitized forms. The digital computer was developed primarily in Unites States of America.

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28 9534