Time and work problems- the basics

Recruitment and Entrance exams will always check the intelligence levels of the candidates. Why because, such subjects will enable them to apply in routine official works to tackle any kind of problems.

Generally Quantitative aptitude subject contains general mathematics in which Time and work problems is an inevitable topic. All of the entrance and recruitment exams set the question paper with a few questions from Time and work problems.

It is quite important to solve aptitude problems quickly to score good marks in the exams. Such kinds of time and work problems are really annoying if you not know to solve it. However, once you know the method and formulae to solve the problems, then it is sure you can complete the question with the answer within the stipulated time.

Basic Concepts of Time and Work

If you come to know the basic connection between time and work, man-hours, then the time and work problems can be solved easily.

Correlation between problems on time and work to time, distance and speed:

  • Speed is equivalent to the rate at which the work is performed
  • Distance traveled is equal to the work performed
  • Time to travel distance is equal to the time to do work

Work is the effort put to produce for accomplishing a task. A specific amount of time (T) taken to complete a certain work (W).

The rate of work (R) is the number of units of work done per unit time

Hence, Work (W)= Rate (R) Time (T) whenever some work is done. So, we can assume the total work done as one unit in the problems to simplify the computations. In such cases, T = 1 / R (or) R = 1 / T whereas R and T are inversely proportional as RT=W which is a fixed quantity.

The Chocolate Method

To make your calculations intuitive, the work can be considered as chocolates to be consumed instead of total units of work to be done.

Say for example:

If “X” can do a piece of work in 10 days and “Y” can do the same work in 20 days, in how many days can they complete it if work together?

Assume the total amount of work to be done is 10 units (LCM of 10 and 20), then work done by X in one day is 1 units and work done by y is 2 units. Work done by both X and Y in one day is 3 units. So, the time taken by them to complete 10 units of work is 3.3 days.

Work equivalence

Questions based on Man days’ concept, the basic assumption shall be done that all men work with equal efficiency unless stated in the question. The correlation between the number of people working (N), the number of days worked (D), the number of hours worked per day (H) and work quantity (W) for 2 different cases are given below:

NX DX H1  = N2  X  DX H2

       W1                                    W2

So, the time and work problems can be done easily by applying various methods and formulae… We shall meet in the next chapter…

Preparing For a College Based Aptitude Test

For all the college students these aptitude tests are basically something new that they have probably never faced in life before. That is why it is important that they first understand the strategies to secure great marks in this type of examination. If college students look for their dream job and intend to prepare in the right direction, they should try their hands on getting an idea about the assessment test taken by the company. Newest recruited people can help in this matter and be getting in touch with them may prove to be beneficial.

Every College Based Aptitude Test Preparation Process

The subjects or things in the questionnaire may differ due to the mission and vision of the company and also the position for which candidates are being recruited. But the process of preparing for it remains just the same. Colleges basically train their students in the knowledge of subjects they try to specialize in and prepare them for some specific set of examinations. But to prepare for this type of exams one should make sure that all things are properly done while preparation. Having an aptitude test is common at the time of placement. To deal with this type of exams and be sure about success, one should be totally sure about the things they are going to face. It is better always to be prepared for a situation.

  1. These test preparations can be done with starting to study something from out of the books and learning things all about them. Every study circle that starts from the basics gets linked with the post for which the candidates are vying for. Preparing for the test can be perfect when a person takes every single aspect seriously.
  2. Then comes time management which forms an important part of preparation. Managing time to keep preparing for both studies and aptitude test is the way in which one can use their day properly. One should separate the time of every single thing they do to prepare for all kinds of exams so that the candidates do not lack on any part of their assessment.
  3. One should never think about mugging up the basic problem-solving questions as the situations in the question may differ. In different situations, the problem-solving skills are sure to differ owing to the natural instinct of the candidates.

These are basically the most important things to consider before starting preparing for an aptitude test. Setting up a schedule to do the right subject at the right time is necessary when a candidate has lots of other things to look forward to. The special papers can be very interesting to answer because they do not fall under a normal boundary of chapters and study material; instead, the mind makes the cut.

Getting success in an aptitude test can be easier when a person is prepared to face the questions they are about to get. Since the questions are unique every candidate finds it more and more interesting.