Aptitude and Reasoning Questions

Q:

Three unbiased coins are tossed.What is the probability of getting at least 2 heads?

A) 1/4 B) 1/2
C) 3/4 D) 1/3
 
Answer & Explanation Answer: B) 1/2

Explanation:

Here S= {TTT, TTH, THT, HTT, THH, HTH, HHT, HHH}.

Let E = event of getting at least two heads = {THH, HTH, HHT, HHH}.

P(E) = n(E) / n(S)

      = 4/8= 1/2

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Filed Under: Probability

92 46168
Q:

Choose the correct option for the figure shown below.

 

A) ∡AOP =∡AOQ B) ∡OAP = ∡OQA
C) AO=OQ D) AP=AO
 
Answer & Explanation Answer: A) ∡AOP =∡AOQ

Explanation:
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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

0 46066
Q:

Select the related word from the given alternatives.

Swim : Water :: Fly : ?

A) Bird B) Air
C) Wings D) Plane
 
Answer & Explanation Answer: B) Air

Explanation:
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Filed Under: Analogy
Exam Prep: Bank Exams

0 46058
Q:

Find the next number in the given number series?

96, 95, 87, 78, ?

A) 64 B) 57
C) 29 D) 14
 
Answer & Explanation Answer: D) 14

Explanation:

The given number series is 96, 95, 87, 78, ? 

It follows a pattern that,

9696 - 12 = 9595 - 23 = 95 - 8 = 8787 - 32 = 87 - 9 = 7878 - 43 = 78 - 64 = 14

 

Hence, the next number in the given number series is 14.

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Filed Under: Odd Man Out
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

3 46025
Q:

Which of the following will fit in '?' place in the following series?

 

AN, BO, CP, DQ, ?

 

A) ES B) RE
C) FS D) ER
 
Answer & Explanation Answer: D) ER

Explanation:
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Filed Under: Alphabet Test
Exam Prep: Bank Exams

3 46008
Q:

An error 2% in excess is made while measuring the side of a square. The percentage of error in the calculated area of the square is:

A) 1.04 B) 2.04
C) 3.04 D) 4.04
 
Answer & Explanation Answer: D) 4.04

Explanation:

100 cm is read as 102 cm. 

A1 = (100*100)Sq.cm 

A2 = (102*102)Sq.cm

(A2 - A1) = 1022-1002 = (102 + 100) x (102 - 100) = 404 sq.cm.

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

40 45956
Q:

The product of two numbers is 9375 and the quotient, when the larger one is divided by the smaller, is 15. The sum of the numbers is :

A) 100 B) 200
C) 300 D) 400
 
Answer & Explanation Answer: D) 400

Explanation:

Let the numbers be x and y.

 

Then, xy = 9375 and  x/y = 15.

 

xyxy=9375/15

 

=>y2 =625

 

=> y = 25

 

=> x = 15y = 15 x 25 = 375.

 

Sum of the numbers = 375 + 25 = 400.

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Filed Under: Problems on Numbers

38 45863
Q:

The area of a circle is 616 sq.cm. Find its radius (in cm).

 

A) 14 B) 28
C) 11 D) 22
 
Answer & Explanation Answer: A) 14

Explanation:
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Filed Under: Area
Exam Prep: Bank Exams

0 45835