Bank PO Questions


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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278 76344
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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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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317 74645
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 73574
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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1119 72820
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) = 2400m2

Area of the lawn = 2109m2 

Area of the crossroads = (2400 - 2109) = 291m2 

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

60x+40x-X2=291 

x2-100x+291=0 

  (x - 97)(x - 3) = 0
   x = 3.

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81 72441
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