Aptitude and Reasoning Questions

Q:

A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?

A) 10/21 B) 11/21
C) 1/2 D) 2/7
 
Answer & Explanation Answer: A) 10/21

Explanation:

Total number of balls = (2 + 3 + 2) = 7.

 

Let S be the sample space.

 

Then, n(S) = Number of ways of drawing 2 balls out of 7 =7C2 = 21

 

Let E = Event of drawing 2 balls, none of which is blue.

 

n(E) = Number of ways of drawing 2 balls out of (2 + 3) balls =5C2 = 10

 

Therefore, P(E) = n(E)/n(S) = 10/ 21.

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Filed Under: Probability

37 28611
Q:

Select the letter which does NOT belong to the group.

 

 

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

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

0 28595
Q:

In the following question, select the odd word from the given alternatives.

 

A) Cauliflower B) Potato
C) Grapes D) Brinjal  
 
Answer & Explanation Answer: C) Grapes

Explanation:
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Filed Under: Odd Man Out
Exam Prep: Bank Exams

1 28572
Q:

The banker's discount on a bill due 6 months hence at 6% is Rs. 18.54. What is the true discount?

A) Rs. 24 B) Rs. 12
C) Rs. 36 D) Rs. 18
 
Answer & Explanation Answer: D) Rs. 18

Explanation:
T= 6 months = 1/2 year

R = 6%

TD= BD×100100+TR=18.54×100100+12×6=Rs.18
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Filed Under: Banker's Discount

3 28570
Q:

The inner circumference of a circular race track, 14 m wide, is 440 m. Find radius of the outer circle

A) 44 B) 22
C) 33 D) 84
 
Answer & Explanation Answer: D) 84

Explanation:

Let inner radius be r metres. Then, 2πr = 440 ; r = 440×744= 70 m.

Radius of outer circle = (70 + 14) m = 84 m.

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

35 28539
Q:

Artists are generally whimsical. Some of them are frustrated. Frustrated people are prone to be drug addicts.

Based on these statements which of the following conclusions is true?

A) All frustrated people are drug addicts B) Frustrated people are whimsical
C) All drug addicts are artists D) Some artists may be drug addicts
 
Answer & Explanation Answer: D) Some artists may be drug addicts

Explanation:
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44 28529
Q:

What is the least number consisting of five digits that is exactly divisible by 12, 18, 20 and 25?

 

A) 10800 B) 11250
C) 10000 D) 10680  
 
Answer & Explanation Answer: A) 10800

Explanation:
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Filed Under: Problems on Numbers
Exam Prep: Bank Exams

0 28518
Q:

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

 

12 - 16 x 25 ÷ 80 + 10 = 7

 

A) ÷ and x B) - and +
C) x and - D) ÷ and -
 
Answer & Explanation Answer: B) - and +

Explanation:
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Filed Under: Coding and Decoding
Exam Prep: Bank Exams

3 28491