Maths Olympiad Prep

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Problem 14

Geometry Difficulty 1.0 Find the answer CEMC Gauss (Grade 8) · Canada · 2003

A sand pit is constructed in the shape of a rectangular prism 10 m long, 50 cm deep and 2 m wide. If the pit is already half-full, how much more sand, in m3m^3, is needed to completely fill the pit?

(A) 66 (B) 55 (C) 2020 (D) 7.57.5 (E) 1010

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