Aptitude and Reasoning Questions

Q:

An electronic device rearranges numbers step-by-step in a particular order according to set of rules. The device stops when the final result is obtained.


Input: 84 15 35 04 18 96 62 08
Step 1: 96 84 15 35 04 18 62 08
Step 2: 96 84 62 15 35 04 18 08
Step 3: 96 84 62 35 15 04 18 08
Step 4: 96 84 62 35 18 15 04 08
Step 5: 96 84 62 35 18 15 08 04
And Step 5 is the last step for this input. Now, find out an appropriate step in the following question following the above rule.

Question:
Input: 16 09 24 28 15 04
What will be the third step for this input ?

A) 28 24 15 16 04 09 B) 28 24 16 15 09 04
C) 24 28 15 16 09 04 D) 28 24 16 15 04 09
 
Answer & Explanation Answer: B) 28 24 16 15 09 04

Explanation:

Carefully obsrving the given arrangement, we find the following pattern:
We observe that the given numbers are arranged in descending order (from left to right), altering the position of only one number in each step, followed by the other numbers as it is. The process continues till the whole set of numbers is arranged in the descending order.

Step1: 28 16 09 24 15 04
Step2: 28 24 16 09 15 04
Step3: 28 24 16 15 09 04

Hence, the answer is B

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Filed Under: Sequential Output Tracing
Exam Prep: Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

7 3427
Q:

Jaclyn buys $50 000 worth of debentures in a company. She earns 9.5% p.a. simple interest, paid to her quarterly (that is, every 3 months). If the agreed period of the debenture was 18 months: calculate the total amount collected at the end of the term.

A) 8125 B) 9125
C) 7125 D) 6125
 
Answer & Explanation Answer: C) 7125

Explanation:

total interest=1187.50*6

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

1 3422
Q:

Mr. Gupta borrowed a sum of money on compound interest. What will be the amount to be repaid if he is repaying the entire amount at the end of 2 years?

I. The rate of interest is 5 p.c.p.a.

II. Simple interest fetched on the same amount in one year is Rs. 600.

III. The amount borrowed is 10 times the simple interest in 2 years.

A) I only B) III only
C) I or II only D) .II and Either I or III only
 
Answer & Explanation Answer: D) .II and Either I or III only

Explanation:

 

 

I. gives, Rate = 5% p.a.

 

II. gives, S.I. for 1 year = Rs. 600.

 

III. gives, sum = 10 x (S.I. for 2 years).

 

Now I, and II give the sum.

 

For this sum, C.I. and hence amount can be obtained.

 

Thus, III is redundant.

 

Again, II gives S.I. for 2 years = Rs. (600 x 2) = Rs. 1200.

 

Now, from III, Sum = Rs. (10 x 1200) = Rs . 12000.

 

Thus, Rate =

 

100 x 1200

 

= 5% p.a.

 

2 x 12000

 

Thus, C.I. for 2 years and therefore, amount can be obtained.

 

Thus, I is redundant.

 

Hence, I or III redundant.

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0 3422
Q:

What would be the next number in the sequence 52, 56, 48, 64, 32, ?

A) 96 B) 48
C) 54 D) 81
 
Answer & Explanation Answer: A) 96

Explanation:

The given number series is 52, 56, 48, 64, 32, …

It follows a pattern that,

52

52 + 4 = 56

56 - 8 = 48

48 + 16 = 64

64 - 32 = 32

32 + 64 = 96

Therefore, the required next number in the given number series is 96.

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Filed Under: Number Series
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

8 3420
Q:

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

Argument :
X advised Y that if he/she wants to study Management, he/she should join IIM.

Assumption :
1. IIM provides good Management education.
2. X listens to the advice given by Y.

 

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

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

0 3419
Q:

5% of 40,000 is

A) 20000 B) 2000
C) 200 D) 20
 
Answer & Explanation Answer: B) 2000

Explanation:

5% of 40,000  = 5100 × 40,000 = 5 × 400 = 2,000  

 

Hence, 5% of 40,000 = 2,000.

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Filed Under: Percentage
Exam Prep: CAT , Bank Exams , AIEEE
Job Role: Bank PO , Bank Clerk , Analyst

7 3417
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

0 3416
Q:

Cell phone users have found that tariff plans are not as attractive as promoted by telecom companies and complained to regulatory authority about the same.

 

Courses of action:

I. The regulatory authority should direct telecom companies to be trasparent on the tariff structure of all plans

II. The government should restrict the number of telecom companies operating in the country.

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: A) If only course of action I follows

Explanation:

Being " not as attractive as promoted " is a clear case of  hiding things. Hence " transparency " is the answer to the problem and I folloes. II goes against the spirit of free market and is not relevant to the problem either.

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