CEMC Fryer, 2006

Algebra Difficulty 1.0 Junior Prove it Canada

Samantha receives the following marks out of $100$ in seven of her eight courses: Math $94$ , Science $93$ , English $84$ , Art $81$ , History $74$ , Phys Ed $83$ , Geography $79$ . Determine her average mark in these seven courses.

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.