A jar contains red and white marbles in the ratio . When Jenny replaces 2 of the white marbles with 7 red marbles, the ratio becomes . What is the ratio of the total number of marbles in the jar now to the total number in the jar before? Put your ratio in its simplest form.
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 Olympiad 2017 (2017)
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 Olympiad 2017 (2017)