Aptitude and Reasoning Questions

Q:

n is an integer chosen at random from the set

{5, 7, 9, 11 }

p is chosen at random from the set

{2, 6, 10, 14, 18}

What is the probability that n + p = 23 ?

A) 0.1 B) 0.2
C) 0.25 D) 0.3
 
Answer & Explanation Answer: A) 0.1

Explanation:

Each of the integers in the first set could be combined with any from the second set, giving a total of 4 x 5 = 20 possible pairs.

Of these the combinations that could give a sum of 23 are (5 + 18), and (9 + 14)

This means that the probability of getting a sum of 23 is 2/20 = 1/10

Report Error

View Answer Report Error Discuss

0 60267
Q:

If 7Ω6 = 84, 8Ω7 = 112 and 8Ω4 = 64, then find the value of 3Ω4 = ?

 

 

A) 24   B) 12
C) 4   D) 20
 
Answer & Explanation Answer: A) 24  

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Coding and Decoding
Exam Prep: Bank Exams

2 60254
Q:

If x2 + kx + k = 0, has two distinct real solutions, then the value of k will satisfy

 

A) k<0 or k>4 B) k>4 only
C) 0<k<4 D) k<0 only
 
Answer & Explanation Answer: A) k<0 or k>4

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Simplification
Exam Prep: Bank Exams

0 60179
Q:

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

 

A) Vehicle – Car B) Scooter – Vehicle
C) Truck – Vehicle D) Bus – Vehicle
 
Answer & Explanation Answer: A) Vehicle – Car

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Odd Man Out
Exam Prep: Bank Exams

8 60154
Q:

Some envelops are gums. Some gums are seals. Some seals are adhesives.

Conclusions:

1. Some envelops are seals

2. Some gums are adhesives

3. Some adhesives are seals

4. Some adhesives are gums

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Statement and Conclusions
Exam Prep: GRE

0 60106
Q:

1 4 27 Sequence ...

Find the next two numbers in the above sequnce?

A) 256 & 3125 B) 3125, 46656
C) 46656, 859587 D) None
 
Answer & Explanation Answer: A) 256 & 3125

Explanation:

The above given sequence follows a pattern that,

 

122 = 433 = 2744 = 25655 = 312566 = 46656and so on...

Therefore, the next two numbers in the given sequence is 256 & 3125.

Report Error

View Answer Report Error Discuss

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

6 60014
Q:

Pick the odd one out from the given number series?

21, 24, 33, 49, 74

A) 21 B) 24
C) 33 D) 49
 
Answer & Explanation Answer: A) 21

Explanation:

The given number series follows a pattern that,

19 + 12 = 20 (not 21)20 + 22 = 2424 + 32 = 3333 + 42 = 4949 + 52 = 74 

 

Hence, the odd number in the given number series is 21.

Report Error

View Answer Report Error Discuss

Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

8 59976
Q:

∆ABC is right angled at B. If cosA = 8/17, then what is the value of cotC ?

 

A)  15/8 B) 15/17
C)  8/17 D) 17/15
 
Answer & Explanation Answer: A)  15/8

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area
Exam Prep: Bank Exams

3 59806