If x:y = 3:4, what is the value of (4x + 5y) : (5x - 2y)?

x=3, y=4 प्रतिस्थापित करें: [4(3) + 5(4)] / [5(3) - 2(4)] = (12 + 20) / (15 - 8) = 32 / 7।