Recycling 1 tonne of paper will save 24 trees. If 4 schools each recycle 43 of a tonne of paper, then the total number of trees this will save is
(A) 24 (B) 72 (C) 18 (D) 126 (E) 80
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.