At a holiday camp, the ratio of boys to girls is and the ratio of girls to adults is . What is the ratio of children to adults at the camp?
Input note: give the ratio in its simplest form.
Select one option, then click Submit.
4:5
5:4
12:7
15:28
21:20
Select an option, then submit.
Sign in or create an account to reveal answers, view the solution, and save your progress. Create a free account to unlock practice and keep track of your work.
Junior Mathematical Challenge 2006 (2006)
One puzzle per day. Cryptarithm, Magic Square, Summit. No sign-up required to play.
Play daily puzzle →Interactive problems and curated lessons—water pouring, magic squares, knight's tour, and more.
Browse library →See how you rank. Top solvers by problems solved correctly. Sign in to climb the ranks.
View leaderboard →Junior Mathematical Challenge 2006 (2006)