Question 766769
the ratio of number of men and women who attended a meeting is 3:5
 after sometime half the men and one-third the women left .
What is the new ratio of men and women?
:
If 1/3 left, then 2/3 remain, therefore:
:
{{{((1/2)*3)/((2/3)*5)}}} = {{{((3/2))/((10/3))}}}
invert the dividing fraction and multiply
{{{(3/2)}}} * {{{(3/10)}}} = {{{9/20}}}
The new ratio is: 9:20