The table shows the number of male and female employees in five companies A, B, C, D and E.
What is the ratio of the average number of male employees to the average number of female employees over all the companies?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 391 : 566
Both averages are taken over the same 5 companies, so the ratio of the averages equals the ratio of the totals.
Male total \(=1650+1075+1280+1170+690=5865\)
Female total \(=2375+2651+1520+1085+859=8490\)
Averages: \(\displaystyle\frac{5865}{5}=1173\) and \(\displaystyle\frac{8490}{5}=1698\)
Ratio \(=1173:1698=391:566\) (dividing by 3)