Equimolar quantities of A, B, and D are fed continuously to a mixed flow reactor where they combine by the elementary reactions. A + D → R (K1), B + D → S(k2) with k2/k1 = 0,2. a) If 50 % of the incoming A is consumed find what fraction of the products formed is R. b) If 50 % of the incoming D is consumed find what fraction of the products formed is R.