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Figure for CAT 2021 DILR question 14 (Data Interpretation)

The figure above shows the schedule of four employees – Abani, Bahni, Danni and Tinni –whom Dhoni supervised in 2020. Altogether there were five projects which started and concluded in 2020 in which they were involved. For each of these projects and for each employee, the starting day was at the beginning of a month and the concluding day was the end of a month, and these are indicated by the left and right end points of the corresponding horizontal bars. The number within each bar indicates the percentage of assigned work completed by the employee for that project, as assessed by Dhoni.

For each employee, his/her total project-month (in 2020) is the sum of the number of months(s)he worked across the five project, while his/her annual completion index is the weight age average of the completion percentage assigned from the different projects, with the weights being the corresponding number of months she worked in these projects. For each project, the total employee-month is the sum of the number of months four employees worked in this project, while its completion index is the weight age average of the completion percentage assigned for the employees who worked in this project, with the weights being the corresponding number of months they worked in this project.

Which employees did not work in multiple projects for any of the months in 2020?

Solution

✅ Correct Option: 4
Slide 1/2

Understanding the set :-

  1. There are 4 employees - Abani, Bahni, Danni and Tinni supervised by Dhoni
  1. They did 5 projects in 2020

also, For each of these projects , the starting day was at the beginning of a month and the concluding day was the end of a month.

  1. The graph shows the percentage of assigned work completed by the employee
  1. total project-month (in 2020) = sum of the number of months (s)he worked across the five project
  1. annual completion index = weighted average of the completion percentage (weights being the corresponding number of months (s)he worked in these projects.)
  1. total employee-month = sum of the number of months four employees worked in this project
  1. completion index = weighted average of the completion percentage assigned for the employees who worked in this project, with the weights being the corresponding number of months they worked in this project.

This is a Gantt Chart.

A Gantt Chart is a project management tool used to illustrate a project schedule over time.

It shows:

a) Tasks/Projects on the vertical axis (e.g., Project 1 to Project 5).

b) Timeline on the horizontal axis (e.g., Jan 1 – Jan 1 next year).

c)Bars representing the duration and progress of each task.

d)Colors and percentages indicate completion levels or progress status.

This is a data interpretation set,

In this kind of set, after understanding the graph/ chart properly , you will solve it according to the question's demand.

Working on multiple projects means :-

  1. Lets take Abani first

Abani in project 1 worked from 1st feb to 1st march

project 2 - she didn't work

project 3 - 1st may to 1st july

Project 4 - 1st july to 1st december

=> Abani is not working simultaneously on more than one project for any month.

  1. Bahni -

Bahni in project 1 worked from 1st feb to 1st march

project 2 - she didn't work

project 3 - 1st April to 1st August

Project 4 - no work

Project 5 - 1 oct to 1 jan

=> Bahni is not working simultaneously on more than one project for any month.

  1. Danni :-

Danni in project 1 didn't woked

project 2 - 1 feb to 1 may

project 3 - 1st june to 1 sep

Project 4 - 1 sep to 1 nov

Project 5 - 1 dec to 1 jan

=> Danni is not working simultaneously on more than one project for any month.

  1. Tinni :-

Tinni in project worked from 1 jan to 1 mar

project 2 - 1 mar to 1 may

project 3 - Didn't work

Project 4 - 1 july to 1 oct

Project 5 - 1 sep to 1 nov

=> Danni has worked in sep and oct on two projects simultaneously i.e., project 4 and 5

Therefore, only Tinni worked on multiple project

=> Abani, Bahni and Danni didn't work on any multiple projects.

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