Answer:
25%
Step-by-step explanation:
Total= 40 students
boys +girls= 40
30 +girls= 40
number of girls
= 40 -30
= 10
Percentage of girls

Alternatively,
percentage of girls
= 100% -(percentage of boys)

Answer:
1 : 8
Step-by-step explanation:
Step-by-step explanation:
option number B.......
Answer: I would say -8,-1
Step-by-step explanation: