Translate

Thursday, 28 July 2011

In what year will Britain be 100% learning disabled?

http://www.guardian.co.uk/society/2011/may/31/care-failing-those-with-learning-disability

" ... people with a learning disability, whose numbers are growing by up to 5% a year ... " 


If the number of people with a learning disability are growing by 5% a year, how long will it be before the British are 100% retarded?

1 comment:

Adolfo said...

Total population of the UK: 63 millions.
Total population of the UK with a learning disability in the UK: 1.5 millions.
Average annual rate of population’s increase: 0.5 per cent.
Average annual rate of population with a learning disability’s increase: 5.0 per cent.
Taking 2011 as zero base, “n” is the year in which both populations are equal.

63(1.005)^n = 1.5(1.05)^n
ln(63) + n ln(1.005) = ln(1.5) + n ln(1.05)
n = 85.33 years.

Total population of the UK by the year 2096: 96.42 millions.
Total population of the UK by the year 2096 with a learning disability in the UK: 96.42 millions.