Maths Olympiad Prep

Library / /76 of 99

, 2019

Algebra Difficulty 3.0 AMC 10/12 Prove it United Kingdom

The real numbers xx and yy satisfy the equations: xyx=180xy - x = 180 and y+xy=208y + xy = 208. Let the two solutions be (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2). What is the value of x1+10y1+x2+10y2x_1 + 10y_1 + x_2 + 10y_2?

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: UK Mathematics Trust, licensed © UK Mathematics Trust; past papers published free at ukmt.org.uk. Statement reproduced verbatim; metadata (topic, difficulty) added by this project. Solutions are the publisher's, linked not copied.