Maths Olympiad Prep

Library / /72 of 149

, 2024

Number theory Difficulty 2.0 Junior Find the answer United Kingdom

The number 100 is multiplied by either 2 or 3. The result then has 1 or 2 added to it. Finally the new result is divided by either 3 or 4. The final result is an integer. What is this integer?

(A) 5050 (B) 5151 (C) 6767 (D) 6868 (E) More than one final answer is possible

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.