Two fair cubes, numbered 1 through 6, are tossed at the same time in order to advance on a game board. What is the probability that a 6 is rolled on both number cubes?

A 1/6 b 1/36 c 1/3 d 1/30

If the cubes are rolled independently, and assuming any face on the cube is as likely to occur as any other, then there is a 1/6 probability of rolling a 6, and rolling a 6 on both simultaneously is 1/6 * 1/6 = 1/36.