Aptitude and Reasoning Questions

Q:

How many parallelograms will be formed if 7 parallel horizontal lines intersect 6 parallel vertical lines?

A) 215 B) 315
C) 415 D) 115
 
Answer & Explanation Answer: B) 315

Explanation:
Parallelograms are formed when any two pairs of parallel lines (where each pair is not parallel to the other pair) intersect.
 

Hence, the given problem can be considered as selecting pairs of lines from the given 2 sets of parallel lines.
 

Therefore, the total number of parallelograms formed = 7C2 x 6C2 = 315
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Q:

Three houses are available in a locality. Three persons apply for the houses. Each applies for one house without consulting others. The probability that all the three apply for the same house is :

A) 2/9 B) 1/9
C) 8/9 D) 7/9
 
Answer & Explanation Answer: B) 1/9

Explanation:

One person can select one house out of 3= 3C1 ways =3.

 

Hence, three persons can select one house out of 3 in 3 x 3 x 3 =9.

 

Therefore, probability that all thre apply for the same house is 1/9

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Q:

An Assertion (A) and a Reason (R) are given below.

 

Assertion (A) : We feel comfortable in hot and humid climate.

Reason (R) : Sweat evaporates faster in humid climate.

 

Choose the correct option.

 

A) A is true but R is false B) A is false but R is true
C) Both A and R are true and R is the correct explanation of A D) Both A and R are false
 
Answer & Explanation Answer: D) Both A and R are false

Explanation:
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Q:

Identify the diagram that best represents the relationship among the given classes.

Hindu, Muslim, Indian

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

Explanation:
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Q:

Consider the argument and decide which of the given assumptions is/are implicit.

 

Argument :

 

The Supreme Court has decided that all rapists will be hanged till death.

 

Assumptions :

 

1. Women will get protection.

2. The number of rapes cases can be reduced.

 

A) Only assumption 2 is implicit B) Neither 1 nor 2 is implicit
C) Both 1 and 2 are implicit D) Only assumption 1 is implicit
 
Answer & Explanation Answer: A) Only assumption 2 is implicit

Explanation:
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Q:

Read the following information carefully and answers the given question.

The municipal authority has made English language as one of the compulsory subjects in all primary schools under its control from the current academic year. 

Which of the following can be an assumption according to the given information? (An assumption is something that is supposed or taken for granted).

A) The students in the primary school run by municipal authority are not taught English so far. B) The parents of the primary school students do not have working knowledge in English language so far.
C) All the primary schools outside the control of municipal authority teach English language as one of the compulsory subjects D) Other subjects can be changed according to the will of the students.
 
Answer & Explanation Answer:

Explanation:

Use of English is continuously growing so it should be taught at primary levels in school and it should not be neglected at this level.

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Filed Under: Statement and Conclusions
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Q:

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

 

Statement :

 

To cultivate interest in debate the school has made it compulsory from December, 2015 for each student to attend two debate classes per week and submit a weekly report on the debates discussed.

 

Conclusions :

 

I. Interest in debating can be created by force.

 

II. Some students eventually will develop interest in debating.

 

A) Only conclusion I follows B) Only conclusion II follows
C) Both I and II follow D) Neither I nor II follows
 
Answer & Explanation Answer: B) Only conclusion II follows

Explanation:
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Q:

The denominator of a fraction is 3 more than the numerator. If the numerator as well as the denominator is increased by 4, the fraction becomes 4/5. What was the original fraction ?

A) 7/11 B) 8/11
C) 9/11 D) 10/11
 
Answer & Explanation Answer: B) 8/11

Explanation:

Let the numerator be x Then, denominator =  x + 3.

Now. (x + 4)/(x + 3) +4 = 4/5  <=> 5 (x + 4) =  4(x + 7)

=>  x = 8.

The fraction is  8/11.

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