When adding 100mL of water to a solution of 50grams of KI in 400mL of water, the total amount of KI in the new solution will be how many grams?

Did I miss something here? The total amount of KI, if no extra is added and none taken away, MUST be 50 grams?

That is what I thought I just needed someone to confirm, it must be a trick question.

Thanks