(c) Total employee left BIM in the given three years= 21 × 3 = 63 Total employee left BIM in 2015 & 2017 together= 63 – 24 = 39 Total employee left BIM in 2015 =39×
7
13
=21 Total employee working in BIM at the end of 2016= 102 – 21 + 78 – 24 = 135 Required percentage =