In an examination, 25% of total students failed in Hindi, 48% failed in English and 27% in both. The percentage of these who passed in both the subjects is :	Pick one:
A) 23
B) 54
C) 28
D) 40
E) 81

Rationale: "explanation : formula n ( a â ˆ ª b ) = n ( a ) + n ( b ) â ˆ ’ n ( a â ˆ © b ) fail in hindi or english = 25 + 48 â € “ 27 = 46 therefore students who passed = 100 â € “ 46 = 54 . answer : b"
Answer: B