9) C
Let pay of males be = ‘p’
We know that males were paid 22.8%.
According to the formula given in the question,
100 x (male pay-female pay/male pay) = gender gap percentage
Substituting, we get
100 x (p-16,000/p) = 22.8
(p-16000)/p = 22.8/100 = 0.228
p-16,000 = 0.228p
Rearranging, we get,
p-0.228p = 16,000
0.772p = 16,000
p = 16,000/0.772 = approximately £20,700
