Question 243156
There are 7 males for every 4 females.


The ratio is 7/4 = 1.75 males for every female.


Multiply the number of females by 1.75 and you get 140 * 1.75 = 245


There are 245 males and 140 females.


You could also have multiplied by 7/4 directly.


7/5 * 140 = 980/4 = 245


There are 140 / 4 = 35 sets of 4 females each.


There are 245 / 7 = 35 sets of 7 males each.


This is just another confirmation that the ratio is true.


If you divide males and females each by 35 you will get 7 males and 4 females.