Bank PO Questions


Q:

If 6 men and 3 boys working together, can do four times as much work per hour as a man and a boy together. Find the ratio of the work done by a man and that of a boy for a given time  ?

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

Explanation:

6M + 3B = 4(1M + 1B)
6M + 3B = 4M + 4B
2M = 1B

M/B = 1/2

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Filed Under: Ratios and Proportions
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19 10270
Q:

The main aim of SAARC is

A) Regional Cooperation B) Internal affairs
C) Non-alignity D) Peaceful Coexistence
 
Answer & Explanation Answer: A) Regional Cooperation

Explanation:

SAARC means The South Asian Association for Regional Cooperation is the regional intergovernmental organization and geopolitical union of nations in South Asia.

It is founded in the yaer 1985. Its headquarters are in Kathmandu, Nepal.

 

Its member states include Afghanistan, Bangladesh, Bhutan, India, Nepal, the Maldives, Pakistan and Sri Lanka.

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Filed Under: World Organisations
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29 10269
Q:

Who introduced gold coins for the first time in India?

A) Kushanas B) Guptas
C) Mauryas D) Sakas
 
Answer & Explanation Answer: A) Kushanas

Explanation:
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Filed Under: Indian History
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15 10259
Q:

Succus Entericus is secreted by

A) Auerbach's plexus B) Peyers patches.
C) Brunner's glands D) Crypts of Lieberkuhn
 
Answer & Explanation Answer: D) Crypts of Lieberkuhn

Explanation:

Succus Entericus is the alkaline secretion produced by glands in the wall of the duodenum, consisting of water, mucoproteins, and hydrogencarbonate ions.

 

Succus Entericus is secreted by Crypts of Lieberkuhn.

 

It helps to counteract the highly acidic and proteolytic chyme entering the small intestine from the stomach, and thus protects the duodenum from damage.

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Filed Under: Biology
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24 10257
Q:

In a certain Business, the profit is 220% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit ?

A) 61% B) 75%
C) 55% D) 81%
 
Answer & Explanation Answer: A) 61%

Explanation:

Let C.P.= Rs. 100.

Then, Profit = Rs.220, 

S.P. = Rs.320.

 

New C.P. = 125% of Rs. 100 = Rs. 125 

New S.P. = Rs.320.

Profit = Rs. (320 - 125) = Rs. 195

 

Required percentage = 195320×100== 60.9 =~ 61%

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Filed Under: Profit and Loss
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7 10257
Q:

Which of these molecules are polar? Check all that apply.

A) SO2 B) CH2Cl2
C) PCl3 D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

   1) SO2                  2) CH2Cl2                3) PCl3

polar1525846214.jpg image

How to check the given molecules are polar or non polar :

If the electronegativity of the two bonded atoms are different then the bond is polar. Although, some molecules contain polar bonds, the molecule may be non-polar. If the polarity of all the bonds present in the molecule are cancel each other then molecule is non-polar.

 

In the given options,

SO2  is polar because the dipole moments on the O do not cancel.

PCl3  is polar because the P-Cl bonds do not cancel out.

CH2Cl2  polar because the C-Cl bonds do not cancel.

 

Hence, in brief, Polar molecules are molecules with net dipole due to the presence of partial positive and partial negative charge.

For example, water is a polar molecule that has partial positive and partial negative charge on it. CO2 is a non polar compound.

 

Therefore, all the given options SO2, CH2Cl2 and PCl3 are Polar molecules.

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Filed Under: Chemistry
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5 10255
Q:

Which acid is produced when milk gets sour?

A) Lactic acid B) Acetic acid
C) Tartaric acid D) Butyric acid
 
Answer & Explanation Answer: A) Lactic acid

Explanation:
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Filed Under: Chemistry
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11 10249
Q:

Which insect sits on uncovered food?

A) bees B) flies
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Both flies and bees can sit on the uncovered food and contaminate the food.

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Filed Under: General Science
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16 10245