If the sales tax rate were to increase from 7% to 7.5%, then the tax on a $1000 item would go up by
(A) $75.00 (B) $5.00 (C) $0.5 (D) $0.05 (E) $7.50
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.