Civil Service Exam Reviewer · Measurement and Geometry · hard
A solid metal cube with 20-cm edges is dropped into a rectangular aquarium 59 cm long and 25 cm wide, fully submerging it. By how much does the water level rise?
- 5.42 cm
- 95.24 cm
- 0.271 cm
- 10.85 cm
Answer
A. 5.42 cm
Solution
Displaced volume = 20³ = 8000 cm³. Rise = 8000 ÷ (59 × 25) = 5.42 cm.
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