10 play kabadi, 15 play kho kho only, 5 play both gmaes. Then how many in total? Pick one:
A) 25 B) 35 C) 38 D) 40 E) 45

Rationale: "10 play kabadi = > n ( a ) = 10 , 5 play both gmaes . = > n ( anb ) = 5 15 play kho kho only , = > n ( b ) = n ( b only ) + n ( anb ) = 15 + 5 = 20 total = > n ( aub ) = n ( a ) + n ( b ) - n ( anb ) = 10 + 20 - 5 = 25 answer : a"
Answer: A