Mathematics · Data Interpretation

The following table represents the number of employees in different categories across five factories (A, B, C, D, and E). CategoryABCDETotal Officers2702201603101651125 Supervisors2001802802502701180 Technicians3302902552802251380 Skilled Labourers15013011012595610 Unskilled Labourers18075180200155790 Total113089598511659105085 If factories B and C are merged together, their combined strength would account for approximately what percent of the grand total strength?