Library / /13 of 61

, 2019

Number theory Difficulty 1.0 Junior Prove it United Kingdom

Two 2-digit multiples of 7 have a product of 7007. What is their sum?

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.