The first thing we must do for this case is find the percentage of people who have less than 16.
 We have then:
 [tex]x = (200/1000) * (100)
x = 20%
[/tex]
 We are now looking for the number of people who have less than 16 in the UK.
 We have then:
 [tex]y = 0.20 * 60,000,000
y = 12,000,000[/tex]
 Then, the number of people under the age of 16 who had the vision tests are:
 [tex]z = (0.20) * (12,000,000)
z = 2,400,000[/tex]
 Answer:
 2,400,000 people under 16 had their sight tested last year across the UK
