I just wanna say, the question they are solving in ch 4 is wrong. The alcoholic solution must be 100ml instead of 200ml, only then can the answer be 20.
GURL
HELPPP
ARE YOU BEING SERIOUS
I just wanna say, the question they are solving in ch 4 is wrong. The alcoholic solution must be 100ml instead of 200ml, only then can the answer be 20.