Pg 315 (327) - Q22
This one says that you've got a bag that contains pieces of candy of which 78 are red and 24 are brown. That's 102 that are either red or brown, and it says that the remainder are yellow. Then it says one-third of them are yellow. Therefore, 102 is 2/3 of the total. Well, if 102 is 2/3 of it, then 51 is simply 1/3. So, the answer here is B, 51.