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Number theory Difficulty 1.0 Junior Find the answer United Kingdom

What day will it be 2021 hours after 20:21 on Monday?

(A) Friday (B) Thursday (C) Wednesday (D) Tuesday (E) Monday

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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.