Library / /42 of 175

, 2018

Number theory Difficulty 1.0 Junior Find the answer United Kingdom

How many digits are there in the correct answer to the calculation $123\,123\,123\,123 \div 123$ ?

(A) $4$ (B) $6$ (C) $8$ (D) $10$ (E) $12$

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.