Aptitude and Reasoning Questions

Q:

Find the probability that one ball is white when two balls are drawn at random from a basket that contains 9 red, 7 white and 4 black balls.

A) 18/95 B) 18/190
C) 1/2 D) 91/190
 
Answer & Explanation Answer: D) 91/190

Explanation:

Total number of elementary events = 20C2 ways =190

 

There are 7 white balls out of which one white can be drawn in 7C1 ways and one ball from remaining 13 balls can be drawn in 13C1 ways.

 

So,favourable events = 7C1*13C1

 

Therfore,required probability = (7C1*13C1)/20C2=91/90

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Filed Under: Probability

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Q:

Arun took a loan of Rs. 29000 with simple interest for as many years as the rate of interest. If he paid Rs. 10440 as interest at the end of the loan period, what was the rate of interest?

A) 5.5% B) 6%
C) 6.5% D) 7%
 
Answer & Explanation Answer: B) 6%

Explanation:

Principle amount = Rs. 29000

Interest = Rs. 10440

Let rate of interest = r%

=> So, time = r years

According to the question,

10440 = 29000 x r x r/100

290 x r x r = 10440

r x r = 1044/29 = 36

r = 6

 

Hence, the rate of interest = 6% and time = 6 yrs.

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Filed Under: Simple Interest
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Q:

Water table in most parts of the State has gone down to such a level that its extraction for irrigation purposes is not economical any more.

 

Courses of action:

I. Extraction of ground water for any purpose in the State should be banned for some time in order to replenish the water table.

II. The Government should make provisions for alternative methods of irrigation so that the farmers are not compelled to use ground water.

A) If only course of action I follows B) If only course of action II follows
C) If either course of action I or II follows D) If both courses of action I and II follow
 
Answer & Explanation Answer: B) If only course of action II follows

Explanation:

I is impractical. Water is essential for life to go on. II is sensible, especially when using ground water is proving to be uneconomical

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Q:

If the ratio of cost price and selling price is 4 : 5 ,then the percentage of profit will be

A) 20 B) 0.1
C) 10 D) 25
 
Answer & Explanation Answer: D) 25

Explanation:
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Filed Under: Profit and Loss
Exam Prep: Bank Exams

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Q:

A man spends in 8 months as much as he earns in 6 months. He saves Rs. 6000 in a year. His average monthly income is

A) Rs. 2400 B) Rs. 2000
C) Rs. 2150 D) Rs. 1800
 
Answer & Explanation Answer: B) Rs. 2000

Explanation:
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Filed Under: Simplification
Exam Prep: Bank Exams

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Q:

You are a team leader and you are supposed to hold a convention on HR issue. But your team members are unable to get adequate sponsorship.

A) You put in your money and hold the event as scheduled B) You try and motivate them that they can do it
C) You postpone the event and give them some more time D) You tell them things can work out like this and cancel the event
 
Answer & Explanation Answer: B) You try and motivate them that they can do it

Explanation:
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Q:

2 men or 3 women can complete a job in 96 days. Then 6 men and 7 women will complete the same job in how many days?

A) 18 B) 27
C) 20 D) 24
 
Answer & Explanation Answer: A) 18

Explanation:
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Filed Under: Time and Work
Exam Prep: Bank Exams

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Q:

With similar triangles the corresponding angles are equal.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

The given statement about similar triangles is TRUE.


 


Similar Triangles Theorem :: Similar triangles are two triangles with corresponding angles of equal measure, and the ratios of their corresponding sides' lengths are equal.

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Subject: Arithmetical Reasoning
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