16 balls are numbered 1 to 16. A ball is drawn and then another ball is drawn without replacement. What is the probability that both balls have even numbers?
Select:
A) 4 / 11 B) 5 / 17 C) 6 / 25 D) 7 / 30 E) 8 / 37

Rationale: "p ( 1 st ball is even ) = 8 / 16 p ( 2 nd ball is also even ) = 7 / 15 p ( both balls are even ) = 8 / 16 * 7 / 15 = 7 / 30 the answer is d ."
Answer: D