Bank PO Questions


Q:

If log330 = 1a  and  log530=1b then the value of 3log302 is:

A) 3(1+a+b) B) 2(1-a-b)
C) 3(1-a-b) D) 3(1+a-b)
 
Answer & Explanation Answer: C) 3(1-a-b)

Explanation:
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Filed Under: Logarithms
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25 6093
Q:

Assertion(A) : Indus valley people knew the art of navigation.
Reason(R) : Indus valley seals indicate prevalence of overseas trade.

A) R is true but A is fale B) A is true but R is false
C) Both A and R are false D) R correctly explains A
 
Answer & Explanation Answer: D) R correctly explains A

Explanation:

The seals found at Indus valley sites gave evidance of overseas trade, which was possible only with the knowledge of art of navigation.
Thus, both A and R are true & R correctly explains A.

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Filed Under: Assertion and Reason
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10 6092
Q:

In which of the houses chairperson is not member of that house?

A) Rajya Sabha B) Legislative Assembly
C) Legislative Council D) Lok Sabha
 
Answer & Explanation Answer: A) Rajya Sabha

Explanation:

The vice President is the chairman of Rajya Sabha. The chairman of Rajya Sabha is not the member of the house.

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Filed Under: Indian Politics
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8 6089
Q:

What does the color black on a map illustrate?

A) contours B) water bodies
C) woodland areas D) borders
 
Answer & Explanation Answer: D) borders

Explanation:

There are different colors that are used for different signs on the maps. The typical color standard for topographic maps depicts contours in brown, bodies of water in blue, boundaries in black, and grids and roads in red. Topographic maps may use different colors to represent area features.

 

Black represents man-made objects or cultural features like roads, bridges, borders, etc...

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Filed Under: World Geography
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4 6088
Q:

Raghu can do a job in 12 days alone and Sam can do the same job in 15 days alone. A third person Aru whose efficiency is two-third of efficiency of both Ram and Shyam together, can do the same job in how many days alone?

A) 10 B) 12
C) 13 D) 15
 
Answer & Explanation Answer: A) 10

Explanation:

One day work of Raghu and Sam together = 1/12 + 1/15 = 9/60 = 3/20

Aru efficiency = 2/3 of (Raghu + Sam)

Number of days required for Aru to do thw work alone = 3/2 x 20/3 = 10 days. 

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Filed Under: Time and Work
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9 6086
Q:

GDP can be calculated by summing

A) Consumption, investment, government purchases, and net exports B) Consumption, investment, government spending, and imports
C) Consumption, investment, government purchases, and imports D) Consumption, investment, wages, and rent
 
Answer & Explanation Answer: A) Consumption, investment, government purchases, and net exports

Explanation:

Gross domestic product (GDP) is the monetary value of all the finished goods and services produced within a country's borders in a specific time period.

Simply, GDP is a broad measurement of a nation’s overall economic activity. 

It is calculated by summation of Consumption, investment, government purchases, and net exports.

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Filed Under: Indian Economy
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5 6075
Q:

Derivative of sinx by first principle?

A) -sinx B) -cosx
C) cosx D) sinx
 
Answer & Explanation Answer: C) cosx

Explanation:

Screenshot_(1)1519127168.png image

 

Thus, the derivative of sinx by first principle is cosx.

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4 6074
Q:

The gas predominantly responsible for global warming is

A) Carbon monoxide B) Nitrous oxide
C) Nitrogen peroxide D) Carbondioxide
 
Answer & Explanation Answer: D) Carbondioxide

Explanation:

72% of the totally emitted greenhouse gases is carbon dioxide.

 

Hence, Carbon dioxide (Co2) is predominantly responsible for Global warming.

 

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Filed Under: General Science
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8 6070