Subject: mathqa
Question: of the families in city x in 1956 , 25 percent owned a personal computer . the number of families in city x owning a computer in 1960 was 15 percent greater than it was in 1956 , and the total number of families in city x was 5 percent greater in 1956 than it was in 1960 . what percent of the families in city x owned a personal computer in 1960 ?
Option: 
A: 27.38 %
B: 50 %
C: 7.20 %
D: 51.22 %
Answer: A