Answer:The difference between the number of children and adults=153
Explanation:
ratio of men to women to children is 1:3:20
Total RATIO = 1+ 3+ 20= 24
Number of men = ratio of men / Total ratio x Total Number of people on the trip =
= 1/24 x 216= 9 men
Number of women=ratio of women / Total ratio x Total Number of people on the trip = 3/ 24 x 216 = 3x 9= 27 women
Number of children=ratio of Children/ Total ratio x Total Number of people on the trip = 20/24 x 216= 20 x9 = 180 children
The difference between the number of children and adults will be 180 -27 = 153