A, B, C, D and E are five persons employed to complete a job X. Line graph shows the data regarding the time taken by these five persons to complete t...
Question
A, B, C, D and E are five persons employed to complete a job X. Line graph shows the data regarding the time taken by these five persons to complete the job X individually. Table shows the actual time for which every one of them worked on the job X.
Note 1: All persons worked for whole number of days.
Note 2: Jobs Y and Z are similar to job X and require the same amount of effort as job X.
If all five persons together completed job X, what is the total number of days B and D worked together?