Różnica 2 liczb jest równa 120.20% z pierwszej liczby to tyle ile 3czwarte drugiej.Jakie to liczby.?

1 liczba = x 2 liczba = y x - y = 120 20%x = 3/4y x = 120 + y 20/100x = 75/100y x = 120 + y 20/100(120+y) = 75/100y x = 120 + y 24 + 20/100y = 75/100y x = 120 + y 24 = 75/100y - 20/100y x = 120 + y 24 = 55/100y |*100/55 x = 120 + y y = 2400/55 x = 120 + y y = 43 35/55 x = 120 + y y = 43 7/11 x = 120 + 43 7/11 y = 43 7/11 x = 163 7/11 y = 43 7/11 Sprawdzenie: x - y = 120 L = x - y L = 163 7/11 - 43 7/11 L = 120 P = 120 20%x = 3/4y L = 20%x L = 20% * 163 7/11 L = 20/100 * 1800/11 L = 360/11 L = 32 8/11 P = 3/4y P = 3/4 * 43 7/11 P = 3/4 * 480/11 P = 360/11 P = 32 8/11 L = P Odp: Szukane liczby to 163 7/11 i 43 7/11.