Answer:
A: Second option
B: 18%
Step-by-step explanation:
PART A
The second option
0.40c(0.15) + 0.60c(0.20)
If we have 40% men, and 15% of them are advanced
we can say 40% x 15% x c which is the same as 0.40 x 0.15 x c
Same thing for the women
0.60 x 0.20 x c
PART B
0.40c(0.15) + 0.60c(0.20)
= 0.06c + 0.12c
= 0.18c which is the same as 18% of c
