Answer :
Adult : Children = 5 parts : 2 parts
Total parts = 5+2 = 7 parts
1 part of people in the zoo = 105/7 = 15 people
Number of children in the zoo = 15×2 = 30 chidren
Total parts = 5+2 = 7 parts
1 part of people in the zoo = 105/7 = 15 people
Number of children in the zoo = 15×2 = 30 chidren