GMAT Test Prep: PS-63955330 GMAT Problem Solving

Balls with consecutive integers from 0 to x are placed in a bowl. Peter draws a ball from the bowl and records the number. Without replacing the first ball, he draws a second ball from the bowl. If the probability that Peter does NOT draw an odd numbered ball on either draw is 42/2, what integer is on the highest numbered ball?
Select one of the following answer choices