Average number of Women working in 2014, 2015 and 2016 together is how much more/less than average number of Men working in 2011, 2014 and 2016 together?

Average number of Women working in 2014, 2015 and 2016 together

= $frac{1}{3}left[ {240 + 360 + 300} ight] = frac{{900}}{3} = 300$

Average number of Men working in 2011, 2014 and 2016 together = $frac{1}{3}left[ {80 + 160 + 360} ight]$

$= frac{{600}}{3} = 200$

Required difference = 300−200 = 100