In a group of 250 readers who read science fiction or literacy works or both, 180 read science fiction and 88 read literacy works. How many read both science fiction and literacy works?	Choose the correct option.
A) 268 B) 180 C) 150 D) 18 E) 88
Consider total number of reader n(S U L) = 250   People who read science fiction n(S) = 180   People who read literacy works n(L) = 88   both science fiction and literacy n(S âˆ© L) = ?   n(S U L) = n(S)+ n(L) - n(S âˆ© L)   250 = 180 + 88 - n(S âˆ© L)   n(S âˆ© L) = 268 - 250   n(S âˆ© L) = 18   SO People read both science fiction and literacy works are 18   ANSWER:18
<result>D</result>
In a group of 250 readers who read science fiction or literacy works or both, 180 read science fiction and 88 read literacy works. How many read both science fiction and literacy works?