Q: Five coins are tossed simultaneously. In how many of the outcomes will the third coin turn up a head?
Options:
(A) 2^4
(B) 2^10
(C) 3 * 2^8
(D) 3 * 2^9
(E) 3 * 2^10 Let's give some random thoughts before answering.
Fix the third coin as H. The remaining 4 coins have 2^4 outcomes.
Therefore, the answer is (A).