Question

Find the ratio compounded of 3:7,21:25,50:54?

Answer 1

The compound ratio of 3:7, 21:25, 50:54 is 1:3

The compound ratio of a:b, c:d, e:f is ace:bdf

The compound ratio of 3:7, 21:25, 50:54 is

                  $= (\frac{3}{7} ) (\frac{21}{25}) ( \frac{50}{54})$

                         $= \frac{1}{3}$

                                = 1:3