Interview Brain Teasers
Medium
1 min
You have a bucket that holds exactly 10 litres and another that holds exactly 7 litres. Without markings, can you measure exactly 3 litres?
Hint
Fill the 10-litre bucket and use the 7-litre bucket.
Answer
Fill the 10L bucket and pour into the 7L bucket. Exactly 3L remains in the 10L bucket.
Explanation
The capacity difference is 3 litres.
Step-by-Step Solution
Fill 10L.
Pour 7L into the second bucket.
10 - 7 = 3L remaining.
Pour 7L into the second bucket.
10 - 7 = 3L remaining.