EDIT: Mistake is that you have calculated the decrease rather than the exact number ..
It has been found that in a small town number of uneducated people decrease each 5 year by 40% of the previous year ..
The number of uneducated people in 2005=70
Calculate number of uneducated people in 2010??
what is the formula that I will use?
Is it true that:
number of uneducated people in 2010=70*(40/100)=28