Bank PO Questions and Answers with Explanation, Job Roles

Q:

If the diagonal of a rectangle is 17cm long and its perimeter is 46 cm. Find the area of the rectangle.

A) 110	B) 120
C) 130	D) 140

Answer & Explanation Answer: B) 120

Explanation:

let length = x and breadth = y then

2(x+y) = 46 => x+y = 23

x²+y² = 17² = 289

now (x+y)² = 23²

=> x²+y²+2xy= 529

=> 289+ 2xy = 529

=> xy = 120

area = xy = 120 sq.cm

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Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

278 76343

Q:

At what rate percent per annum will a sum of money double in 8 years.

A) 12.5%	B) 13.5%
C) 11.5%	D) 14.5%

Answer & Explanation Answer: A) 12.5%

Explanation:

Let principal = P, Then, S.I.= P and Time = 8 years

We know that S.I. = PTR/100

Rate = [(100 x P)/ (P x 8)]% = 12.5% per annum.

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Filed Under: Simple Interest - Quantitative Aptitude - Arithmetic Ability
Exam Prep: GRE , CAT , Bank Exams
Job Role: Bank PO , Bank Clerk

453 74813

Q:

90 D in a R A

Answer

90 D in a R A => 90 degrees in a Right Angle.

This is similar to

26 L of the A = 26 Letters of the Alphabet

12 S of the Z.

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Subject: Logic Puzzles Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
Job Role: Network Engineer , IT Trainer , Database Administration , Bank PO , Bank Clerk , Analyst

317 74644

Q:

Hydrogen bomb is based on the principle of

A) nuclear fission	B) nuclear fusion
C) natural radioactivity	D) artificial radioactivity

Answer & Explanation Answer: B) nuclear fusion

Explanation:

Hydrogen Bomb is based on the principle of Nuclear Fusion.

Hydrogen_bomb_is_based_on_the_principle_of1552385714.jpg image

Nuclear fusion is a reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic particles.

The difference in mass between the reactants and products is manifested as either the release or absorption of energy.

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

467 73844

Q:

One rabbit saw 6 elephants while going towards River. Every elephant saw 2 monkeys are going towards river. Every monkey holds one tortoice in their hands.

How many animals are going towards the river?

A) 14	B) 11
C) 8	D) 5

Answer & Explanation Answer: D) 5

Explanation:

From the given data,

1 rabbit is going towards river not the six eephants. And these 6 elephants saw 2 monkeys are going towards river. Each monkey is holding 1 tortoice.

One_rabbit_saw_6_elephants_while_going_towards_River._Every_elephant_saw_2_monkeys_are_going_towards_river_._Every_monkey_holds_one_tortoice_in_their_hands_._1536581196.jpg image

Hence, number of animals going towards river are 1 rabbit, 2 monkeys and 2 tortoice

= 1 + 2 + 2

= 5.

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Filed Under: Logic Puzzles
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE , TOEFL
Job Role: Analyst , Bank Clerk , Bank PO

246 73572

Q:

How many such pairs of digits are there in the number 421579368 each of which has as many digits between them in the number as when they are arranged in ascending order?

A) None	B) One
C) Two	D) Three

Answer & Explanation Answer: D) Three

Explanation:

Given Number: 4 2 1 5 7 9 3 6 8

Ascending order: 1 2 3 4 5 6 7 8 9

Hence the required pairs are 12, 49, 16

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Filed Under: Number, Ranking and Time Sequence Test - Verbal Reasoning - Mental Ability
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank PO

1119 72819

Q:

A rectangular park 60 m long and 40 m wide has two concrete crossroads running in the middle of the park and rest of the park has been used as a lawn. If the area of the lawn is 2109 sq. m, then what is the width of the road?

A) 1	B) 2
C) 3	D) 4

Answer & Explanation Answer: C) 3

Explanation:

Area of the park = (60 x 40) = 2400 $m^{2}$

Area of the lawn = 2109 $m^{2}$

Area of the crossroads = (2400 - 2109) = 291 $m^{2}$

Let the width of the road be x metres. Then,

$60 x + 40 x - X^{2} = 291$

$x^{2} - 100 x + 291 = 0$

(x - 97)(x - 3) = 0
x = 3.

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Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

81 72440

Q:

206 B in a B?

Answer

206 Bones in the Human Body.

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Subject: Logic Puzzles Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

266 70900

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