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1.Solution Y is 30 percent liquid X and 70 percent water. If 2 kilograms of water evaporate from 8 kilograms of solution Y and 2 kilograms of solution Y are added to the remaining 6 kilograms of liquid, what percent of this new solution is liquid X?
2.If r☉s = rs + r + s, then for what value of s is r ☉s equal to r for all values of r?
(A) â€“1 (B) 0 (C) 1
(D) 1/(r+1) (E) r