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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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Subject: Logic Puzzles Exam Prep: Bank Exams
Job Role: Software Architect , Project Manager , Network Engineer , IT Trainer , Database Administration , Bank PO , Bank Clerk , Analyst

48 9631
Q:

Excretion is best described as the removal of

A) Undigested material from the digestive tract B) Metabolic wastes from a cell
C) Toxic wastes by the process of cyclosis D) Water molecules from dipeptide hydrolysis
 
Answer & Explanation Answer: B) Metabolic wastes from a cell

Explanation:

Excretion is best described as the removal of Metabolic wastes from a cell.

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

21 9622
Q:

Dhanraj Pillay is related to which sports ?

A) Cricket B) Hockey
C) Golf D) Football
 
Answer & Explanation Answer: B) Hockey

Explanation:

Dhanraj Pillay is a retired Indian field hockey player and former captain of the Indian national team.He currently serves as the manager of the team.

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

18 9614
Q:

World Wide Web is being standard by

A) W3C B) World Wide Web Standard
C) Worldwide corporation D) World Wide Consortium
 
Answer & Explanation Answer: A) W3C

Explanation:

World Wide Web is being standard by W3C.

 

The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. Led by Web inventor and Director Tim Berners-Lee and CEO Jeffrey Jaffe, W3C's mission is to lead the Web to its full potential.

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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer , Network Engineer

10 9610
Q:

A Shepherd had n goats in the year 2000. In 2001 the no.of goats increased by 40% . In 2002 the no. of goats declined to 70%. In 2003 the no. of  goats grew by 30%. In 2004, he sold 10% goats, then he had only 34,398 goats. The percentage increase of the no.of goats in this duration was:

A) 14.66% B) 16.66%
C) 20% D) 33.33%
 
Answer & Explanation Answer: A) 14.66%

Explanation:

There is no need to use the no of goats i.e (34,398). let initially thete be 1000 goats then 

 

  1000 -----> 1400 -----> 980 -----> 1274 ----->1146.6

 

Thus the % increase = (1146.6-1000)/100 x 100= 14.66%

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Filed Under: Percentage
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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7 9604
Q:

An Engine length 1000 m moving at 10 m/s. A bird is flying from engine to end with 'x' m/s and coming back at '2x' m/s. Take total time of bird travelling as 187.5 s. Find x and 2x in km/hr ?

A) 21.4 and 42.8 B) 25.2 and 50.4
C) 31.4208 and 62.8416 D) 33.12 and 66.24
 
Answer & Explanation Answer: C) 31.4208 and 62.8416

Explanation:

Birds speeds in mtrs/sec is 'x' and '2x' .
While flying from Engine to end, relative speed = (x+10) m/sec
from end to engine, flying speed = (2x - 10) mtr/sec
so
1000/(x+10) + 1000/(2x-10) = 187.5 secs
solving it, we get
so x = 8.728 m/sec and 2x= 17.456 m/sec

x = 31.4208 km/hr and 2x = 62.8416 km/hr.

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Filed Under: Problems on Trains
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
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11 9603
Q:

Find the principal if the interest compounded at the rate of 10% per annum for two years is Rs. 420 ?

A) Rs. 2000 B) Rs. 2100
C) Rs. 1900 D) Rs. 2150
 
Answer & Explanation Answer: A) Rs. 2000

Explanation:

Given,
Compound rate, R = 10% per annum
Time = 2 years
C.I = Rs. 420
Let P be the required principal.
A = (P+C.I)
Amount, A = P1 + r100n

(P+C.I) = P1 + 101002

(P+420) = P[11/10][11/10]

P-1.21P = -420

0.21P = 420

Hence, P = 420/0.21 = Rs. 2000

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Filed Under: Compound Interest
Exam Prep: GATE , CAT , Bank Exams , AIEEE
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7 9602
Q:

Computer process data into information by working exclusively with

A) numbers B) multimedia
C) characters D) words
 
Answer & Explanation Answer: C) characters

Explanation:

Computers process data into information by working exclusively with characters.

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Filed Under: Computer
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13 9584