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HKIMO 2019 THPT (Grades 10–12 shared) National Final (Heat) Set 02 Question 19

HKIMO · HKIMO 2019 THPT (Grades 10–12 shared) National Final (Heat) Set 02

Question 19

A 16 cm by 15 cm by 17 cm rectangular container initially has water 2 cm deep. Two cubes of side 7 cm are put inside. What is the maximum rise in water level, in cm?

Model convention: solid, non-floating, axis-aligned cubes; conserved water, no trapped air or water. The question asks for the rise, not the final depth.