Aptitude and Reasoning Questions

Q:

LCM of 252, 308 and 198 is

A) 1443 B) 2124
C) 2545 D) 2772
 
Answer & Explanation Answer: D) 2772

Explanation:

Prime factors of 

252 = 2 x 2 x 3 x 3 x 7; 

308 = 2 x 2 x 7 x 11; 

198 = 2 x 3 x 3 x 11

Therefore LCM of 252, 308 and 198 is 2 x 2 x 3 x 3 x 7 x 11 = 4 x 9 x 77 = 2772.

 

 

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Filed Under: HCF and LCM
Exam Prep: Bank Exams

22 15410
Q:

Sachin is younger than Rahul by 7 years. If the ratio of their ages is 7:9, find the age of Sachin

A) 24.5 B) 25.5
C) 26.5 D) 27.5
 
Answer & Explanation Answer: A) 24.5

Explanation:

If Rahul age is x, then Sachin age is x - 7,

 

so, (x-7)/x =7/9

 

 9x - 63 = 7x
 2x = 63
 x = 31.5

So Sachin age is 31.5 - 7 = 24.5

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Filed Under: Problems on Ages

60 15410
Q:

Read the statement and select a conclusion from the given alternatives.

 

Statement :

 

Company 'X' had asked its employees to declare income and assets but it has strongly opposed by the employees' his/her union and no employee is going to declare his/her income.

 

Conclusions :

 

I. The employees of the company 'X' do not seem to have any additional income besides their salary.

II. The employees' union want all the senior officer to declare their income first.

 

A) Only conclusion I follows B) Only conclusion II follows
C) Either I or II follows D) Neither I nor II follows
 
Answer & Explanation Answer: D) Neither I nor II follows

Explanation:
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Filed Under: Statement and Conclusions
Exam Prep: Bank Exams

0 15404
Q:

Arrange the given words in the sequence in which they occur in the dictionary.

i. Carrier
ii. Capability
iii. Cause
iv. Course

A) ii, i, iii, iv B) i, ii, iii, iv
C) ii, iii, i, iv D) ii, iv, i, iii
 
Answer & Explanation Answer: A) ii, i, iii, iv

Explanation:
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Filed Under: Logical Sequence of Words
Exam Prep: Bank Exams

1 15401
Q:

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 

 Assertion (A) : We feel colder on mountains than on plains.

 Reason (R)    : Temperature decreases with altitude. 

A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true but R is NOT the correct explanation of A.
C) A is true but R is false. D) A is false but R is true.
 
Answer & Explanation Answer: A) Both A and R are true and R is the correct explanation of A.

Explanation:

Higher above the sea level, temperature decreases at the rate of  1 degree centigarade for every 165 me-tres of ascent making mountain peaks colder. 

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Filed Under: Assertion and Reason

4 15401
Q:

Gaurav ranks eighteenth in a class. What is his rank from the last ? 

I. There are 47 students in the class. 

II. Jatin who ranks 10th in the same class, ranks 38th from the last. 

A) If the data in statement I alone are sufficient to answer the question B) If the data in statement II alone are sufficient answer the question
C) If the data either in I or II alone are sufficient to answer the question; D) If the data even in both the statements together are not sufficient to answer the question
 
Answer & Explanation Answer: C) If the data either in I or II alone are sufficient to answer the question;

Explanation:

To find the rank from other end, we need to know the total number of students in the class. So. I is sufficient. Also: from II, we can conclude that there are (10 + 38- 1 = 47) students in the class.

So. II alone is also sufficient. 

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Filed Under: Data Sufficiency

4 15388
Q:

The average age of 80 boys in a class is 15. The average age of group of 15 boys in the class is 16 and the average of another 25 boys in the class is 14. What is the average age of the remaining boys in the class ?

A) 12.24 yrs B) 13.25 yrs
C) 16 yrs D) 15.25 yrs
 
Answer & Explanation Answer: D) 15.25 yrs

Explanation:

Total ages of 80 boys = 15 x 80 = 1200 yrs.
Total age of 16 boys = 15 x 16 = 240 yrs
Total age of 25 boys = 14 x 25 = 350 yrs.
Average age of remaining boys = 1200 - (240+350) / 80 - (25+15) = 610/41 = 15.25 yrs.

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Filed Under: Problems on Ages
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

11 15379
Q:

Which year has 366 days?

A) 1900 B) 1200
C) 2500 D) 1700
 
Answer & Explanation Answer: B) 1200

Explanation:

NOTE: When a century year leaves a remiander 0, when divided by 400 then it is a leap year (366 days).

So, 1200 has 366 days.

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Filed Under: Calendar

48 15364