A laboratory technician needs to make a 48​-liter batch of a ​40% acid solution. How can the laboratory technician combine a batch of an acid solution that is pure acid with another that is ​20% to get the desired​ concentration?

pakistan's principal natural resources are arable land and water. about 25% of pakistan's agriculture accounts for about 21% [1] of gdp and employs about 43% of the labour force. in pakistan, the most agricultural province is punjab where wheat and cotton are the most grown.

there are infinitely many solutions.