Maths Olympiad Prep

Library / CEMC Gauss (Grade 8) /109 of 525

CEMC Gauss (Grade 8), 2004

Algebra Difficulty 1.0 Junior Find the answer Canada

Two fair coins are tossed at the same time. What is the probability they will both land as "HEADS"?

(A) 00 (B) 11 (C) 12\frac{1}{2} (D) 13\frac{1}{3} (E) 14\frac{1}{4}

We don't reproduce this publisher's solutions. Their own solution is here — work the problem first.
Want a route through all this instead of an archive? The track puts 2,604 problems in a working order, from Junior Challenge level to the IMO shortlist.

Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.