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UKMT Junior Mathematical Challenge, 2021

Combinatorics Difficulty 1.0 Junior Find the answer United Kingdom

A cube has edge length 10 cm. Starting at the vertices, dots are placed along every edge at 1 cm intervals. Part of this pattern is shown. How many dots will there be in total, once the pattern has been completed?

(A) $128$ (B) $116$ (C) $112$ (D) $108$ (E) $104$

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