Can you find it out?????????

puzzle - question mark
@nick17 (107)
February 6, 2007 8:03am CST
A house painter was asked to mix 6 litres of grey in the proportions of two parts white to one part black, but by mistake he mixed 4 litres of black with 2 litres of white. What is the smallest amount of paint he needs to pour away to correct his mistake?????
No responses