Number of robberies in Springfield in 2013 is 380.
Explanation:
Robberies occured in the year 2013 and 2014
Let the number of Robberies in 2013 = x
In 2014, the robberies reduced to 20%
and the number of robberies in 2014 = 76
So, 20% of x = 76
= 2/10 . x = 76
x = 380
Therefore, number of robberies in Springfield in 2013 is 380.