Aptitude and Reasoning Questions

Q:

If there are 17 randomly placed dots on a circle,how many lines can you form using any 2 dots?

A) 126 B) 130
C) 136 D) 120
 
Answer & Explanation Answer: C) 136

Explanation:

17C2 = 136 (combination)

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Q:

Choose the set of figures which follows the given rule.

Rule: Any figure can be traced by a single unbroken line without retracting.

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

Explanation:
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Filed Under: Rule Detection

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Q:

Using numbers from 0 to 9 the number of 5 digit telephone numbers that can be formed is

A) 1,00,000 B) 59,049
C) 3439 D) 6561
 
Answer & Explanation Answer: C) 3439

Explanation:

The numbers 0,1,2,3,4,5,6,7,8,9 are 10 in number while preparing telephone numbers any number can be used any number of times.

 

This can be done in 105ways, but '0' is there

 

So, the numbers starting with '0' are to be excluded is 94 numbers.

 

 Total 5 digit telephone numbers = 105- 94 = 3439

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Filed Under: Permutations and Combinations
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

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Q:

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

 

Argument :

 

Akbar said to his queen, "Birbal is the wisest man in my kingdom."

 

Assumptions :

 

1. Akbar is not as wise as Birbal.

2. Akbar wants Birbal to become the next King.

 

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: D) Only assumption 1 is implicit

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

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Q:

The following question consist of two words each that have a certain relationship to each other, followed by lettered pairs of words.Select the lettered pair that has the same relationship as the original pair of words.

Fury  :  Ire

A) Amusement : Happiness B) Joke : Laugh
C) Cry : Whisper D) Convulsion : Spasm
 
Answer & Explanation Answer: D) Convulsion : Spasm

Explanation:

Second is a more intense form of the first

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Filed Under: Analogy

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Q:

A alone can do a work in 20 days. B is 125% more efficient than A. A and B started working and worked for 4 days. If C alone completed the remaining job in 22 days. How many days C alone takes to complete the entire job?

A) 30 B) 35
C) 40 D) 42
 
Answer & Explanation Answer: C) 40

Explanation:
A alone can do = 20days 
 
Efficiency ratio of A & B= 4 : 5

Time required will be in ratio = 5:4

B alone will do it in =16 days

LCM of (16,20)= 80 ,
 
Assume work size of 80 units

 

1 day work of A= 4 units 1 day work of B= 5 units

 

Work done by both in 4 days= 4*(5+4)= 36 units

 

Work left= 80-36= 44 units

 

Now C takes 22 days to complete= 44 units.

 

Time taken by C alone to complete the work= 40 days
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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

A train 150 m long is running with a speed of 68 km/h. In what time will it pass a man who is running at 8 km/ h in the same direction in which the train is going?

A) 8 sec B) 8.5 sec
C) 9 sec D) 9.5 sec
 
Answer & Explanation Answer: C) 9 sec

Explanation:

Relative speed = 68-8 = 60 km/hr = 60 X 5 / 18 m/s = 50/3 m/s

Total distance = 150 m

Time taken to pass a man running in same direction = 150 X 3/50 = 9 seconds

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Filed Under: Problems on Trains
Exam Prep: Bank Exams

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Q:

Give an investment of $13200,compound amount of $22680.06 invested for 8 years,what is the interest rate if interest rate is compounded anually?

A) 6% B) 5%
C) 7% D) 8%
 
Answer & Explanation Answer: C) 7%

Explanation:

M = p(1+i)^n

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Filed Under: Compound Interest
Exam Prep: Bank Exams
Job Role: Bank PO

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