Maths Olympiad Prep

Library / /89 of 387

, 2006

Algebra Difficulty 1.0 Junior Find the answer Canada

A class of 3030 students recently wrote a test. If 2020 students scored 8080, 88 students scored 9090, and 22 students scored 100100, then the class average on this test was

(A) 9090 (B) 8484 (C) 8282 (D) 8686 (E) 8888

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.