Bank PO Questions


Q:

An alloy of copper and bronze weight 50g. It contains 80% Copper. How much copper should be added to the alloy so that percentage of copper is increased to 90%?

A) 45 gm B) 50 gm
C) 55 gm D) 60 gm
 
Answer & Explanation Answer: B) 50 gm

Explanation:

Initial quantity of copper =80100 x 50 = 40 g 

And that of Bronze = 50 - 40 = 10 g

Let 'p' gm of copper is added to the mixture

=> 50 + p x 90100 = 40 + p

=> 45 + 0.9p = 40 + p

=> p = 50 g

Hence, 50 gms of copper is added to the mixture, so that the copper is increased to 90%.

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Filed Under: Alligation or Mixture
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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20 7014
Q:

What is the first step in the refining of petroleum?

A) Distillation B) Cooling
C) Drilling D) Cracking
 
Answer & Explanation Answer: A) Distillation

Explanation:

The first step in the refining of petroleum is distillation i.e,  the fractionation of crude oil in atmospheric and vacuum distillation towers.

The first process petroleum refinery is known as distillation. In this process, crude oil is heated and fed into a distillation column. As the temperature of the crude oil in the distillation column rises, the crude oil separates itself into different components, called "fractions." The fractions are then captured separately. Each fraction corresponds to a different type of petroleum product, depending on the temperature at which that fraction boils off the crude oil mixture.

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

18 7013
Q:

State funding of elections takes place in

A) Germany and Austria B) USA and Canada
C) France and Italy D) Britain and Switzerland
 
Answer & Explanation Answer: A) Germany and Austria

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

14 7011
Q:

Low voltage cables are meant for use up to

A) 3.3 kV B) 1.1kV
C) 11 kV D) 0.5 kV
 
Answer & Explanation Answer: B) 1.1kV

Explanation:

Low Voltage Cables are used to supply power for use up to 1.1 kV.

low_voltage_cables_are_meant_for_use_up_to1553167280.jpg image

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT
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4 7010
Q:

Onion Eating Festival is celebrated in which country ?

A) Sweden B) Thailand
C) New Delhi D) Spain
 
Answer & Explanation Answer: D) Spain

Explanation:

Sweden - Potato Festival

Thailand - Vegetarian Festival

New Delhi - International Mango Festival

Spain - Onion Eating Festival

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Filed Under: World Geography
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21 7006
Q:

If the radius of a circle is decreased by 50% , find the percentage decrease in its area.

A) 75% B) 65%
C) 35% D) 25%
 
Answer & Explanation Answer: A) 75%

Explanation:

let original radius = r and  new radius = (50/100) r = r/2

 


original area = πr2 and new area = πr/22

 


decrease in area =  3πr2/4*1πr2 *100 = 75%

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Filed Under: Area
Exam Prep: Bank Exams
Job Role: Bank PO

0 7004
Q:

90% of people fail to solve this math puzzle?

ninety_percent_fail_to_answer_this1588595933.jpg image

A) 45 B) -20
C) 35 D) -60
 
Answer & Explanation Answer: D) -60

Explanation:

A - A - A = 20
B - B - B = 15
C - C - C = 25

A = -20
B = -15
C = -25

=> A + B + C = (-20)+(-15)+(-25) = -20 - 15 - 25 = -60.

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

21 6997
Q:

Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

 ___ utt ___ tt ___ ttu ___   

A) t t u t B) t u t t
C) t u u t D) t t t u
 
Answer & Explanation Answer: C) t u u t

Explanation:

t, u, u and t.

The sequence is : tut tut tut tut.

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Filed Under: Alphabet Test
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8 6995