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HKIMO 2020 Grade 6 National Final (Heat) Set 01 Question 18

HKIMO · HKIMO 2020 Grade 6 National Final (Heat) Set 01

Question 18

For a cuboid, increasing its length by 1 cm increases volume by $24\ \mathrm{cm}^3$; increasing its width by 2 cm increases volume by $56\ \mathrm{cm}^3$; increasing its height by 3 cm increases volume by $126\ \mathrm{cm}^3$. Find the original volume in cubic centimetres.

Source glossary (English–Vietnamese): Cuboid: hình hộp chữ nhật; Length: chiều dài; Increase: tăng; Volume: thể tích; Width: chiều rộng; Height: chiều cao; Cubic centimeter: xentimét khối.