ECZ 2025 · O-Level Paper 1 — Similarity and Congruency
Two similar solids X and Y have surface areas 5 cm² and 20 cm² respectively. If the volume of solid Y is 200 cm³, calculate the volume of solid X.
- A. 50 cm³
- B. 25 cm³
- C. 100 cm³
- D. 12.5 cm³
Verified working — step 1
Surface-area ratio ofThe full step-by-step working and final answer are included with Premium — checked against ECZ marking standards.
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