rules ?

[mdray]

saw this question (which tripped me up) on the IAABO website.....

Team A is charged with a technical foul for an excessive time-out. During this stopped clock interval of time, B-1 is replaced by B-6. B-1 then returns to the game and attempts the two free throws which are: (a) both successful; (b) both unsuccessful; or (c) one is successful and one is not. What is the ruling in each of the three situations? (Fed rules)