Question

TII
There are three cans. One of them holds exactly
10 litres of milk and is full. The other two cans can hold 7 litres and 3
litres respectively. There is no graduation mark on the cans. A customer
asks for 5 litres of milk. How would you give him the amount he ask? He
would not be satisfied by eye estimates.
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Answer 1

Answer:

which subject is this and which class