Problem: if a 5 cm cube is cut into 1 cm cubes , then what is the percentage increase in the surface area of the resulting cubes ?
Rationale: "the area a of the large cube is 5 * 5 * 6 = 150 square cm . the area of the 125 small cubes is 125 * 6 = 750 = 5 a , an increase of 400 % . the answer is d ."
annotated_formula: multiply(const_100, divide(multiply(surface_cube(1), surface_cube(5)), surface_cube(5)))