The Top IT Company Solved Placement Papers

Image by Getty Images via @daylifeWipro Type Time & Work Problems

Time & Work is a favourite area considering placement test of any big company like Wipro. You can always expect few questions from time and work section. Though tagged as wipro sample paper, one can expect these kinds of questions in other papers as well.

Question 1

Consider three people A,B and C. Let A and B can finish a job in 21 days, B and C in 14 days and A and C in 28 days. Who will take the least time when working independently ?

Options : 1) A 2) B 3) C 4) Can't be determined

Answer 1

Correct answer is B

Consider WA, WB and WC be the work done per day by A,B and C respectively. Then

WA + WB = 1/21 -- eq 1

WB + WC = 1/14 -- eq 2

WA + WC = 1/28 -- eq 3

Eq 2 - Eq 3 will give

WB - WA = 1/14 - 1/28 = 1/28 -- eq 4

Eq 1 + Eq 4 will give

2WB = 1/21 + 1/28 = 7/84

WB = 7/168

Sub value of WB in eq 1, we get

WA = 1/21 - 7/168 = 1/168.

Sub value of WA in eq 3, we get

wc = 1/28 - WA = 1/28 - 1/168 = 5/168

Since WB (work done by B per day) is greater when compared to WA and WB clearly B will be able to the maximum work on any given day and hence he should consume least amount of time when working independently.

Question 2

Consider two postmen A and B respectively. A is young and can deliver 20 parcels in 3 hours while B is older than A and can deliver only 15 parcels in 4 hours. If the total number of parcels to deliver is 60, how long they will take working together.

a. 121/12 hours b. 144/36 hours c. 144/25 hours d. 121/25 hours

Answer 2

Correct ans is option c. 144/25 hours.

A can deliver 20 parcels in 3 hours. Hence for 1 hour he can deliver 20/3 parcels.
B can deliver 15 parcel in 4 hours. Hence for 1 hour B needs 15/4 parcels.

When A and B work together, for 1 hour they can deliver, 20/3 + 15/4 parcles = 80 + 45 /12 = 125/12 parcels.
Hence to deliver 60 parcels they would require : 60 X 12/125 = 720/125 = 144/25 hours

Question 3

Consider a courier company A which can deliver 100 parcels in 5 days with 5 men working for 8 hours a day. Consider another courier company B where every employee is equally effecient as that of company B. Company B is short of one man when compared to A and has a policy of asking its workers to work only for 6 hours a day. How long (in days) company B will take to deliver 100 parcels.

Options : a. 8.3 b. 24 c. 12 d 6.6

Answer

Correct answer is a. 8.3 days

Total amount of work W = N x D X W

where N = number of men, D = number of days, W = amount of work per day

Applying the above formula for company A we get,

Work done by company A to deliver 100 parcels = 5 X 5 X 8 = 200 -- eq 1

Work done by company B to deliver 100 parcels = 4 X D x 6 = 24D -- eq 2

Since the work to be done is same in both the cases, eq 1 = eq2

or 200 = 24D or D = 8.3



4 Sample TCS Sentence Completion Questions


Dear Reader, sentence completion questions are the ones asking you to find contextually correct words (synonyms) to fill the given blanks. These types of placement questions can be expected on papers of several companies including TCS. Hence it is very essential to develop your vocabulary and the ability to pick the correct word in context.

Question 1

Value of currency started increasing which ultimately kick started __ (a. deflation / b. depreciation / c. disinflation) in economy.

Answer : a. deflation

Reason :Deflation is the term used to denote a fall in prices of goods indicating currency value rise. Though disinflation could appear close in context, it actually means a slow rise in inflation rather than an exact opposite of inflation.

Question 2

The introduction of number zero to mathematics is considered to be one of the greatest __ (a. innovations / b. inventions / c. discoveries) of all times.

Answer: a. innovations

Reason : Innovation means a change that could be considered to have brought a great positive change in some field. Hence innovation fits the context well. However, invention means to invent something new and discovery means to find something unknown.

Question 3

__ (a. incentives / b. bonuses /c. gifts) generally motivate people to carry out tasks in an efficient manner.

Answer: a. Incentives

Reason : Incentive means a motivating factor that encourages people to carry out their tasks efficiently. Though bonuses and gifts closely suit the context, they generally mean only monetary benefits whereas incentive can mean even non monetary benefits like appreciation.

Question 4

___ (a. Idiom / b. Connotation /c. Paradox) refers to words implying different meaning than the actual literal meaning.

Answer : b. Connotation

Reason : Connotation is where words actually mean something but their implied meaning would be different. For example think of the words 'warm reception'.


Wipro Type Conceptual Interview Questions

Dear Reader, in Wipro technical interviews, you may not only expect questions from facts but also you can expect questions asking you to explain the concepts. Below are 3 sample technical interview questions that can be used by you to prepare for Wipro and other similar interviews.

Question 1

In software applications, especially in JAVA based applications, how design patterns help after a problem/requirement is identified ?

Answer 1

Design pattern can be treated as a way or template to solve a problem depending upon the nature of the problem/requirement. Though they themselves cannot solve a problem, they provide greater insights into the best possible ways to solve them.

Question 2

Say two programs essentially dealing with solving same problem through similar algorithms. Let A be written using pointers and B be written using arrays. Which one will be memory efficient and which will be more readable.

Answer 2

A will be more memory efficient than B and B will be more readable than A. Reason : generally pointers are more memory efficient when used by an experienced programmer. And arrays are generally easily readable and can be easily understood by even beginner level programmer.

Question 3

What is the integrity constraint in SQL which when used ensures that values in a column of a table have a corresponding member on another column of another table.

Answer 3

Foreign Key is the answer (self explanatory as the question itself has got the explanation)


TCS Type 3 Facts & Concepts Interview Questions

You could expect questions on TCS interviews asking you to pick and explain a right answer based on the choices presented before you. These types of questions are not only limited to TCS but can be expected on several other companies placements/interviews as well.

Question 1

Which of the C variable qualifiers amongst const and Volatile provides more data safety ? Explain the reason.

Answer 1

const is the qualifier that provides more data security by throwing error when an accidental attempt is made to modify the same.

Question 2

Which is more memory efficient in generic sense - Arrays or Linked Lists ?

Answer 2

Actually, there is no significant difference in memory requirement for arrays and linked lists as both increase with increase in data. (However, linked lists are generally easier to work with dynamic data)

Question 3

Among function declaration and function definition which of the following gives first hand information to the compiler about its return data type and arguments.

Answer 3

Function declaration is the answer, as it precedes function definition. With function declaration, the compiler can get to know about its return data type, the number and type of the arguments etc.

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Interview : BPO

Interview : BPO : HR Interview Question and Answer

General Interview Question and Answer



There are many things that you can do ahead of time to prepare for the interviewing process, and move yourself a step above of the competition. Updating your resume and reviewing frequently asked interview questions can be very effective, and goes a long way in getting the most out of your interview.

Tell me Something about yourself.

Start with the present and tell why you are well qualified for the position. Remember that the key to all successful interviewing is to match your qualifications to what the interviewer is looking for. In other words you must sell what the buyer is buying. This is the single most important strategy in job hunting.



So, before you answer this or any question it's imperative that you try to uncover your interviewer's greatest need, want, problem or goal.



To do so, make you take these two steps:

Do all the homework you can before the interview to uncover this person's wants and needs (not the generalized needs of the industry or company)



As early as you can in the interview , ask for a more complete description of what the position entails. You might say: I have a number of accomplishments I'd like to tell you about, but I want to make the best use of our time together and talk directly to your needs. To help me do, that, could you tell me more about the most important priorities of this position? All I know is what I (heard from the recruiter, read in the classified ad, etc.)



Then, ALWAYS follow-up with a second and possibly, third question, to draw out his needs even more. Surprisingly, it's usually this second or third question that unearths what the interviewer is most looking for.



You might ask simply, "And in addition to that?..." or, "Is there anything else you see as essential to success in this position?:



This process will not feel easy or natural at first, because it is easier simply to answer questions, but only if you uncover the employer's wants and needs will your answers make the most sense. Practice asking these key questions before giving your answers, the process will feel more natural and you will be light years ahead of the other job candidates you're competing with.



After uncovering what the employer is looking for, describe why the needs of this job bear striking parallels to tasks you've succeeded at before. Be sure to illustrate with specific examples of your responsibilities and especially your achievements, all of which are geared to present yourself as a perfect match for the needs he has just described.



What are your greatest strengths ?

You know that your key strategy is to first uncover your interviewer's greatest wants and needs before you answer questions. And from Question 1, you know how to do this.



Prior to any interview, you should have a list mentally prepared of your greatest strengths. You should also have, a specific example or two, which illustrates each strength, an example chosen from your most recent and most impressive achievements.



You should, have this list of your greatest strengths and corresponding examples from your achievements so well committed to memory that you can recite them cold after being shaken awake at 2:30AM.



Then, once you uncover your interviewer's greatest wants and needs, you can choose those achievements from your list that best match up.





As a general guideline, the 10 most desirable traits that all employers love to see in their employees are:



A proven track record as an achiever...especially if your achievements match up with the employer's greatest wants and needs.



Intelligence...management "savvy".

Honesty...integrity...a decent human being.



Good fit with corporate culture...someone to feel comfortable with...a team player who meshes well with interviewer's team.



Likeability...positive attitude...sense of humor.



Good communication skills.



Dedication...willingness to walk the extra mile to achieve excellence.



Definiteness of purpose...clear goals.



Enthusiasm...high level of motivation.



Confident...healthy...a leader.



What are your greatest weaknesses ?

Disguise a strength as a weakness.



Example: I sometimes push my people too hard. I like to work with a sense of urgency and everyone is not always on the same wavelength.



Drawback: This strategy is better than admitting a flaw, but it's so widely used, it is transparent to any experienced interviewer.



BEST ANSWER: (and another reason it's so important to get a thorough description of your interviewer's needs before you answer questions): Assure the interviewer that you can think of nothing that would stand in the way of your performing in this position with excellence. Then, quickly review you strongest qualifications.



Example: Nobody's perfect, but based on what you've told me about this position, I believe I' d make an outstanding match. I know that when I hire people, I look for two things most of all. Do they have the qualifications to do the job well, and the motivation to do it well? Everything in my background shows I have both the qualifications and a strong desire to achieve excellence in whatever I take on. So I can say in all honesty that I see nothing that would cause you even a small concern about my ability or my strong desire to perform this job with excellence.



Alternate strategy (if you don't yet know enough about the position to talk about such a perfect fit):



Instead of confessing a weakness, describe what you like most and like least, making sure that what you like most matches up with the most important qualification for success in the position, and what you like least is not essential.



Example: Let's say you're applying for a teaching position. If given a choice, I like to spend as much time as possible in front of my prospects selling, as opposed to shuffling paperwork back at the office. Of course, I long ago learned the importance of filing paperwork properly, and I do it conscientiously. But what I really love to do is sell (if your interviewer were a sales manager, this should be music to his ears.)



Tell me about something you did – or failed to do – that you now feel a little ashamed of ?

As with faults and weaknesses, never confess a regret. But don't seem as if you're stonewalling either.



Best strategy: Say you harbor no regrets, then add a principle or habit you practice regularly for healthy human relations.



Example: Pause for reflection, as if the question never occurred to you. Then say, You know, I really can't think of anything. (Pause again, then add): I would add that as a general management principle, I've found that the best way to avoid regrets is to avoid causing them in the first place. I practice one habit that helps me a great deal in this regard. At the end of each day, I mentally review the day's events and conversations to take a second look at the people and developments I'm involved with and do a double check of what they're likely to be feeling. Sometimes I'll see things that do need more follow-up, whether a pat on the back, or maybe a five minute chat in someone's office to make sure we're clear on thingswhatever.



I also like to make each person feel like a member of an elite team, like the Boston Celtics or LA Lakers in their prime. I've found that if you let each team member know you expect excellence in their performanceif you work hard to set an example yourselfand if you let people know you appreciate and respect their feelings, you wind up with a highly motivated group, a team that's having fun at work because they're striving for excellence rather than brooding over slights or regrets.

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