Equal mass samples of three liquids, A, B and C are obtained. The initial temperatures are 14 C, 24 C, and 40 C for liquids A, B, and C, respectively. If liquids A and V are mixed, the final temperature is 20 C and if liquids V and C are mixed, the final temperature is 34 C. Determine the final temperature if all three liquids are mixed at once. (Assume no heat is lost to container or surroundings).