Answer:
1. 30 respondents
Solution:
= 18 / 60%
= 18 / 0.60
=30
2. 44%
= 11 ÷ 25
= 0.44 = 44%
3. 20%
3 days = 10%
30 days = 100%
so 24 / 3=8
8 x 10 = 80%
100% - 80% = 20%