11) D

This is a long calculation questions as you can see here. Please remember, whenever you are stuck on such demanding questions during the exam, please skip it and then come back to them at the end. Each question is worth the same!

Average gender pay gap in 2016 = 9.4%
Average weekly earnings in 2016 = £539
To find Average weekly earnings for men in 2016, we divide 9.4% by 2 and add it to the £539 = £539 + 4.7% = £564 (same logic used as Q9)

We know earnings for men rose by 75% from 1997.
Earnings for men in 1997 = 564 ÷ 1.75 = £322

Gender pay gap in 1997 = 17.4%
Women earned 17.4% less than men and men earned £322
So, in 1997, women earned = 322 – 17.4% = £266

We now need to find out average weekly earnings for women in 2016. Women earned 9.4% less than men and men earned £564 in 2016.
So women earned = £511

Rise in average weekly earnings for women from 1997 to 2016 = 511 – 266 = £245
% rise = (245 ÷ 266)  x 100 = 92%