There are three bottles, the first can carry only 10L,the second 7L, the third 3L. The first is full while the other two are empty...how can we have 5 L only in the first one??? without using any instrument.

Follow Math Help Forum on Facebook and Google+

B1 b2 b3 10 0 0 3 7 0 3 4 3 6 4 0 6 1 3 9 1 0 9 0 1 2 7 1 2 5 3 5 5 0