In the furnace, there is a cauldron containing 9 litres of molten tin. During the experiment, it is necessary to add the tin to the elixir in three equal portions of 3 litres each, at fixed time intervals. You have only three fireproof goblets with capacities of 5 litres, 4 litres, and 2 litres. How can you measure out exactly three portions of 3 litres each?
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.
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 →