Maths Olympiad Prep

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Number theory Difficulty 2.0 Junior Find the answer United Kingdom

The multiplication abc×de=7632abc \times de = 7632 uses each of the digits 11 to 99 exactly once. What is the value of bb?

(A) 11 (B) 44 (C) 55 (D) 88 (E) 99

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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.