Aptitude and Reasoning Questions

Q:

In a simultaneous throw of two dice, what is the probability of getting a doublet ?

A) 1/6 B) 1/3
C) 4/7 D) 4/5
 
Answer & Explanation Answer: A) 1/6

Explanation:

In a simultaneous throw of two dice, n(S) = 6 x 6 = 36

 

Let E = event of getting a doublet = { (1,1), (2,2), (3,3), (4,4), (5,5), (6,6)}

 P(E)=n(E)n(S)=636=16

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Filed Under: Probability

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Q:

A piece of ribbon 4 yards long is used to make bows requiring 15 inches of ribbon for each. What is the maximum number of bows that can be made?

A) 8 B) 9
C) 10 D) 11
 
Answer & Explanation Answer: B) 9

Explanation:

The maximum number of bows will be 4 yards (= 4 x 36 inches) divided by 15 inches.

This gives 9.6. But as a fraction of a bow is no use, we can only make 9 bows.

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Filed Under: Numbers
Exam Prep: GRE

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Q:

How many brothers does Tarun have ? 

I. Tarun's father has three children. 

II. Tarun has two sisters. 

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 in both the statements together are needed.
 
Answer & Explanation Answer: D) If the data in both the statements together are needed.

Explanation:

From both the statements together, we find that Tarun's father has three children — Tarun and his two sisters This means that Tarun has no brother.

So, both I and II are needed. 

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Filed Under: Data Sufficiency

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Q:

Study the following diagram and answer questions based on it.

 

 

The ratio of hockey players to chess players is

A) 9/18 B) 10/18
C) 11/18 D) 15/18
 
Answer & Explanation Answer: C) 11/18

Explanation:
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Filed Under: Image Analysis
Exam Prep: Bank Exams

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Q:

Select the Answer Figure that is the correct Water Image of the given Problem Figure.

 

 

A) A B) D
C) B D) C
 
Answer & Explanation Answer: B) D

Explanation:
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Filed Under: Image Analysis
Exam Prep: Bank Exams

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Q:

Insert the missing character marked as '?'.

 

 

A) 7 B) 9
C) 15 D) 11
 
Answer & Explanation Answer: A) 7

Explanation:
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Filed Under: Arithmetical Reasoning
Exam Prep: Bank Exams

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Q:

Which of the following statement is sufficient to answer the question?

 

Find the age of the mother from the given statements.

 

Statements :

 

I. Mother's age is 10 years more than her son

 

II. Sons age is 24 years more than daughter

 

A) Only II is sufficient while I is not B) Neither I nor II is sufficient
C) Both I and II are sufficient D) Only I is sufficient while II is not
 
Answer & Explanation Answer: A) Only II is sufficient while I is not

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

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Q:

If a number 72k23l is divisible by 88. Then find value of k and l ?

A) k=8 & l=2 B) k=7 & l=2
C) k=8 & l=3 D) k=7 & l=1
 
Answer & Explanation Answer: B) k=7 & l=2

Explanation:

If a number to be divisile by 88, it should be divisible by both "8" and "11"

Check for '8' :
For a number to be divisible by "8", the last 3-digit should be divisible by "8"
Here 72x23y --> last 3-digit is '23y'
So y=2 [ (i.e) 232 is absolutely divisible by "8"]

Chech for '11' :
For a number to be divisible by "11" , sum of odd digits - sum of even digits should be divisible by "11"
(7 + x + 3) - (2 + 2 + y)
(7 + x + 3) - (2 + 2 + 2)
(10 + x) - 6 should be divisible by "11"
for x = 7
=> 17 - 6 = 11 [ which is absolutely divisible by "11"]

So x = 7 , y= 2.

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Filed Under: Problems on Numbers
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