Question

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.​

Answer 1

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.​

Answer:

First take 10 liter of milk and pour into 3 liter can 3 times.

There is 9 liter of milk and 1 liter of milk left keep it separately.

Then, Take 9 liter of milk and pour into 7 liter can.

There is 7 liter of milk and 2 liter of milk will remain.

Then, Take 7 liter of milk and pour into 3 liter of can.

There is 3 liter of milk and 4 liter of milk remain left and keep aside.

Now, Add 4 liter left milk and 1 liter left milk we get 5 liter of milk.