If a machine produces 150 items in one minute, how many would it produce in 10 seconds?
(A) 10 (B) 15 (C) 20 (D) 25 (E) 30
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.