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Water Jugs
Two Jugs. One challenge. Can you measure the exact amount ?
NEED A HINT?
HINT 1
Think about what happens when you pour from the 5-litre jug into the 3-litre jug
HINT 2
Can you use the 3-litre jug twice, with some water already in it the second time ?
ANSWER
Fill the 5-litre jug and pour from it into the 3-litre jug. This leaves 2 litres in the 5-litre jug. Empty the 3-litre jug, then pour the remaining 2 litres into it. Refill the 5-litre jug and pour from it into the 3-litre jug until the 3-litre jug is full. It only needs 1 more litre, leaving exactly 4 litres in the 5-litre jug .
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