Given: Difference of two numbers is 108. Calculation: Let the two numbers be A and B. A decreased by 15% and B is increased by 19%. According to statement, A × 85/100 = B × 119/100 ⇒ A × 5 = B × 7 ⇒ A/B = 7/5 ⇒ Difference = A – B = 7x – 5x = 2x = 108 ⇒ x = 54 Thus, Sum = A + B = 7x + 5x = 12x = 12 × 54 = 648