In a group of 400 players some are outdoor players, some are indoor players and some plays both. 350 plays outdoors and 110 plays indoor. How many plays indoor as well as outdoor games.  Choose the correct choice:
A) 70
B) 60
C) 90
D) 100
E) 110
Consider total number of players n(O U I) = 400   Players who plays outdoors n(O) = 350   Players who plays indoors n(I) = 110   Players who plays both n(O âˆ© I) = ?   n(O U I) = n(O)+ n(I) - n(O âˆ© I)   400 = 350 + 110 - n(O âˆ© I)   n(O âˆ© I) = 460 - 400   n(O âˆ© I) = 60   SO People read both science fiction and literacy works are 60   ANSWER:60
<result>B</result>
In a group of 400 players some are outdoor players, some are indoor players and some plays both. 350 plays outdoors and 110 plays indoor. How many plays indoor as well as outdoor games.