Q. In a room containing 28 females, there are 18 females who speak English, 15 females speak french and 22 speak german. 9 females speak both english and french, 11 females speak both french and german where as 13 speak both german and english. How many females speak all 3 languages? (Solved)
1. 9
2. 8
3. 7
4. 6
- d. 6