Bank PO Questions


Q:

The series of differences between consecutive prime numbers is represented as Cp1, Cp2, Cp3, .... Cpn , Whare Cp1 is the difference between the second and the first prime number. Find the sum of series when n = 23, given that the 23rd prime number is 83 ? 

A) 87 B) 81
C) 83 D) 85
 
Answer & Explanation Answer: A) 87

Explanation:

Cp1 = p2 - p1 ,
Cp2 = p3 - p2
..
..
..
Cp23 = p24 - p23
Sum of series = (p2-p1) + (p3-p2) + .....(p23-p22) + (p24-p23)
All terms get cancelled, except p1 = 2 and p24 = 89
So Sum = -p1 + p24
Sum of series = -2 + 89 = 87

Report Error

View Answer Report Error Discuss

Filed Under: Problems on Numbers
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

4 4514
Q:

Environmental Science is the study of

A) Geography B) Physics
C) Biology D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

environmental_science_is_the_study_of1549343122.png image

Environmental science is a field that integrates physical, biological and information sciences to the study of the environment, and the solution of environmental problems. This emerged from the fields of natural history and medicine during the Enlightenment.

 

In brief, it is a scientific study of the natural world and how it is influenced by people.

Report Error

View Answer Report Error Discuss

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

3 4512
Q:

When the European union formed nations began to?

A) eliminate their home governments. B) abolish many geographic boundaries.
C) create one unified education system. D) cooperate on law enforcement.
 
Answer & Explanation Answer: D) cooperate on law enforcement.

Explanation:

When the European union formed nations began to cooperate on law enforcement. The European Union is set up with the aim of ending the frequent and bloody wars between neighbours, which culminated in the Second World War.

 

As of 1950, the European Coal and Steel Community begins to unite European countries economically and politically in order to secure lasting peace. The six founding countries are Belgium, France, Germany, Italy, Luxembourg and the Netherlands. The 1950s are dominated by a cold war between east and west.

 

The historical roots of the European Union lie in the Second World War. Europeans are determined to prevent such killing and destruction from ever happening again.

Report Error

View Answer Report Error Discuss

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

0 4512
Q:

21st letter of the alphabet is a Consonant.

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

We know there are 26 alphabets in English. The 21st letter in the alphabet is 'U'.


We have 5 vowels and 21 consonants.


Vowels :: A, E, I, O, U.


U is not consonant and is a vowel.


 


Hence, the given statement that 21st letter in the alphabet i.e, U is consonant is a FALSE.

Report Error

View Answer Workspace Report Error Discuss

7 4511
Q:

What number missed in the given Number Series ?  

19420676_1344419765665124_2975530705548683226_n1499838926.jpg image

A) 15 B) 13
C) 21 D) 16
 
Answer & Explanation Answer: A) 15

Explanation:

Two series alternate here, with every third number following a different pattern.
In the main series, 4 is added to each number to arrive the next.
In alternate series, 5 is subtracted from each number t arrive the next number.
Here in the main series 
3 + 4 = 7
7 + 4 = 11
11 + 4 = 15
15 + 4 = 19

In alternate series 
24 - 5 = 19
19 - 5 = 14...

Report Error

View Answer Report Error Discuss

Filed Under: Number Puzzles
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

12 4511
Q:

The compound interest on Rs. 30,000 at 7% per annum is Rs. 4347. The period (in years) is:

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

Explanation:

Amount = Rs. (30000 + 4347) = Rs. 34347.

Let the time be n years.

Then, 30000*(1+7/100)^n=34347

n= 2 years

Report Error

View Answer Report Error Discuss

Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

0 4510
Q:

Which of the following memory is volatile?

A) RAM B) Floppy disc
C) ROM D) Magnetic tape
 
Answer & Explanation Answer: A) RAM

Explanation:

Volatile memory is computer memory that requires power to maintain the stored information. It is a temporary memeory which cannot contain information permanently.

Example :: RAM or Random Access Memory

Report Error

View Answer Report Error Discuss

4 4509
Q:

With which of the following was U. R. Rao who passed away at 85 is associated with ?

A) Scientist B) Poet
C) Politics D) Auther
 
Answer & Explanation Answer: A) Scientist

Explanation:

1. Eminent space scientist and former Indian Space Research Organisation (ISRO) Chairman Udupi Ramachandra Rao passed away due to age related ailments. He was 85.

2. He was currently serving as the chairman of the governing council of the Physical Research Laboratory in Ahmedabad. Rao served as the chairman of ISRO for 10 years from 1984-1994.

Report Error

View Answer Report Error Discuss

Filed Under: Famous Personalities
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

8 4506