C-11-Q138mediumsingle_mcqIf x:y=7:5x:y = 7:5x:y=7:5 and y:z=5:7y:z = 5:7y:z=5:7, then x:z=x:z =x:z=a35:4935:4935:49b35:3535:3535:35c25:4925:49