Aptitude and Reasoning Questions

Q:

A motorboat running upstream takes 8 hours 48 minutes to cover a certain distance, while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the motorboat and speed of the water current respectively?

A) 3:7 B) 7:9
C) 5:4 D) 8:3
 
Answer & Explanation Answer: D) 8:3

Explanation:

Let the man's rate upstream be x kmph and that downstream be y kmph.

Then, distance covered upstream in 8 hrs 48 min = Distance covered downstream in 4 hrs.

x x 8 4 = (y x 4)
5
44 x =4y
5
 y = 11 x.
5
 Required ratio = y + x : y - x
2 2
   = 16x x 1 : 6x x 1
5 2 5 2
   = 8 : 3
5 5

   = 8 : 3.

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Filed Under: Boats and Streams
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Q:

Determine the nominal rate of interest if:
The periodic rate is 1.75% per quarter.

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

Explanation:

j=mi

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Filed Under: Compound Interest
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Q:

If there is a total of 104 weekly instalments and a third deposit, find: the total cost of the computer

A) 3932.55 B) 4932
C) 5932 D) 6932
 
Answer & Explanation Answer: A) 3932.55

Explanation:

Total cost = deposit + loan + interest
= 1231.67 + 2463.33 + 237.55
= $3932.55

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Filed Under: Simple Interest
Exam Prep: Bank Exams
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Q:

In the question below consists of a question and two statements numbered a and b given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give the answer.

Question: How is Vinitha related to Ragini ?
Statements:
a. Vinitha's husband is the only son of Ragini's mother.
b. Vinitha's brother and Ragini's husband are cousins.

A) Neither a nor b is sufficient B) Either a or b is sufficient
C) Both a & b are sufficient D) a alone is sufficient while b alone is not sufficient
 
Answer & Explanation Answer: B) Either a or b is sufficient

Explanation:

From a, we conclude that Vinitha is the wife of Ragini's mother's only son i.e. Ragini's brother. Thus, Vinitha is Ragini's sister-in-law.

From b, we conclude that Vinitha is the cousin of Ragini's husband, which implies that Vinitha is Ragini's sister-in-law.

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Filed Under: Statement and Conclusions
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Q:

Three of the following four are alike in a certain way and hence form a group. Which is the one that does not belong to that group?

A) Rice B) Wheat
C) Barley D) Mustard
 
Answer & Explanation Answer: D) Mustard

Explanation:

Except Mustard each belongs to the same categeory, viz foodgrains. Mustard is an oilseed.

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Filed Under: Classification

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Q:

Choose the most essential part for the word given below from the following options ?

Shoe

A) Lace B) Sole
C) Leather D) Walking
 
Answer & Explanation Answer: B) Sole

Explanation:

All shoes have a sole of some sort.Not all shoes are made of leather (choice b); nor do they all have laces (choice c).Walking (choice d) is not essential to a shoe.

 

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Filed Under: Logic
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Q:

Choose the mirror image for the following figure when the mirror is kept at the MN line.

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

Explanation:
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Filed Under: Image Analysis

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Q:

How many prime numbers exist in 65×359×113 ?

A) 29 B) 31
C) 33 D) 27
 
Answer & Explanation Answer: B) 31

Explanation:

Given  65×359×113

2×35×5×79×113 

25×35×59×79×113

Thus, there are (5 + 5 + 9 + 9 + 3)= 31 prime numbers.

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Filed Under: Numbers
Exam Prep: CAT
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