Aptitude and Reasoning Questions

Q:

There are three rooms in a Hotel: one single, one double and one for four persons. How many ways are there to house seven persons in these rooms ?

A) 105 B) 7! x 6!
C) 7!/5! D) 420
 
Answer & Explanation Answer: A) 105

Explanation:

Choose 1 person for the single room & from the remaining choose 2 for the double room & from the remaining choose 4 people for the four person room, 

 Then, 7C1 x 6C2 x 4C

= 7 x 15 x 1 = 105

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Filed Under: Permutations and Combinations
Exam Prep: GRE , GATE , CAT , Bank Exams , AIEEE
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Q:

The price of a cycle is reduced by 25 per cent. The new price is reduced by a further 20 per cent. The two reductions together are equal to a single reduction of

A) 45% B) 40%
C) 35% D) 32.5%
 
Answer & Explanation Answer: B) 40%

Explanation:

Let the original price of the cycle be 100. After the first reduction the price will be 75.

This new price is then reduced by 20% = 0.8 x 75 = 60

60 represents a reduction of 40 percent on the original.

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Filed Under: Percentage
Exam Prep: GRE

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Q:

Should there be only a uniform rate of income tax irrespective of the level of income?

Arguments :

I. Yes. This will substantially reduce the work of the officials of the income tax department.

II. No. This will reduce Govt tax collection to a large extent

A) If only argument I is strong B) If only argument II is strong
C) If neither I nor II is strong D) If both I and II are strong
 
Answer & Explanation Answer: B) If only argument II is strong

Explanation:

I is weak because reduction of workload of IT officials is not too desirable a motive. II is strong because reduced tax collection will have a bad impact on state activities.

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Q:

Select the most appropriate term for the given set of items.

 

 

A) Graph B) Mathematics
C) Rubricks D) Analytics
 
Answer & Explanation Answer: D) Analytics

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

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Q:

In the following question, select the missing number from the given series.

 

3, 5, 7, 9, ?

 

A) 10 B) 11
C) 12 D) 13
 
Answer & Explanation Answer: B) 11

Explanation:
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Filed Under: Number Series
Exam Prep: Bank Exams

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Q:

Which of the following diagrams correctly represents elephants, wolves, animals?

   None

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

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

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Q:

A number X is mistakenly divided by 10 instead of being multiplied by 10. What is the percentage error in the result?

A) -99% B) +99%
C) -100% D) +100%
 
Answer & Explanation Answer: A) -99%

Explanation:

By mistake = x/10 

 

Actual value = x * 10 

 

% Change = 10x-x1010x×100 = 99100×100  = 99% (negative)

 

Since actual value is greater than the wrong value.

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Filed Under: Percentage
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Q:

The variance of a set of data is 169. Then the standard deviation of the data is

 

A) +-13 B) 13
C) 69 D) 84.5
 
Answer & Explanation Answer: B) 13

Explanation:
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Filed Under: Probability
Exam Prep: Bank Exams

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