If C:D = 2:5 and D:F = 4:7 then C:D:F is  Choose the correct choice from the following options: A) 8:20:35 B) 6:20:35 C) 8:20:33 D) 8:22:35 E) 5:20:35
Solution:   C/D = 2/5;   D/F = 4/7;   C:D:F = 2*4:5*4:5*7 = 8:20:35.   8:20:35nswer: Option 8:20:35
<result>A</result>
If C:D = 2:5 and D:F = 4:7 then C:D:F is