Library / /89 of 121

, 2023

Number theory Difficulty 3.0 AMC 10/12 Find the answer United Kingdom

Jenny calculates the average of five different prime numbers. Her answer is an integer. What is the smallest possible integer she could have obtained?

(A) $2$ (B) $5$ (C) $6$ (D) $12$ (E) $30$

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.