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You have a 1-liter and a 2-liter cup and unlimited water.
How to get exactly 1.5 liters?
Risposta
Fill 2L, pour to 1L (1L left). Empty 1L, pour remaining 1L into 1L cup; refill 2L and top 1L to full (adds 0.5L), leaving 1.5L in 2L
Spiegazione
Use 2L to fill 1L (leaves 1L). Empty 1L; pour 1L into it. Refill 2L; top the 1L (adds 0.5L), 1.5L remains in 2L.
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