in an examination , 34 % of total students failed in hindi , 44 % failed in english and 22 % in both . the percentage of these who passed in both the subjects is :
explanation : formula n ( a â ˆ ª b ) = n ( a ) + n ( b ) â ˆ ’ n ( a â ˆ © b ) fail in hindi or english = 34 + 44 â € “ 22 = 56 therefore students who passed = 100 â € “ 56 = 44 . answer : d
subtract(const_100, subtract(add(34, 44), 22))