Concept: Follow BODMAS rule to solve this question, as per the order given below. Step - 1: Parts of an equation enclosed in 'Brackets' must be solved first, and following BODMAS rule in the bracket. Step - 2: Any mathematical 'Of' or 'Exponent' must be solved next. Step - 3: Next, the parts of the equation that contain 'Division' and 'Multiplication' are calculated. Step - 4: Last but not the least, the parts of the equation that contain 'Addition' and 'Subtraction' should be calculated. Calculation: x = [{(1.2 × 2.5) + (0.25 × 18)} - (0.125 ÷ 0.25)] ÷ 10 ⇒ x = [{3 + (0.25 × 18)} - (0.125 ÷ 0.25)] ÷ 10 ⇒ x = [{3 + 4.5} - (0.125 ÷ 0.25)] ÷ 10 ⇒ x = [{7.5} - (0.125 ÷ 0.25)] ÷ 10 ⇒ x = [{7.5} – 0.5] ÷ 10 ⇒ x = 7 ÷ 10 = 0.7