A cuboid wood block is cut off from the top with a small cube 5cm high, and then it becomes a cube, with a surface area of 120cm less than the original, Find the volume of the original cuboid

A cuboid wood block is cut off from the top with a small cube 5cm high, and then it becomes a cube, with a surface area of 120cm less than the original, Find the volume of the original cuboid

120 △ 4 △ 5 = 6cm
6 + 5 = 11cm
Volume: 6 × 6 × 11 = 396 cm3