Answer guide
Why this answer works
Read the explanation
After the 3-litre jug already has 2 litres, it needs 1 more litre. Pouring 1 litre from the full 5-litre jug leaves exactly 4 litres.
Answer guide
After the 3-litre jug already has 2 litres, it needs 1 more litre. Pouring 1 litre from the full 5-litre jug leaves exactly 4 litres.
Keep guessing