Concept:/Formula: If x is subtracted from n times of y, then = ny - x Calculation: Let the number be x, then According to the question ⇒ 3x – 16 = 8 ⇒ 3x = 8 + 16 ⇒ 3x = 24 ⇒ x = 24/3 ⇒ x = 8 ∴ The original number is 8. Cube of the original number is = 83 = 512.