Calculate the moles of `BaSO_(4)` obtained in each case if excess of `BaCl_(2)` is reacted with :
(a) `H_(2)SO_(4)` solution produced from collecting only `SO_(3)` present in `100 gm` of `104.5 %` oleum and reacted with excess of water
(b) only `H_(2)SO_(4)` taken from 100 g 104.5 % oleum
(c) `H_(2)SO_(4)` solution obtained when 4.5 gm water is added to 100 gm oleum labelled as `104.5 %`
Write the nearest integral value of `(a)+(b)+(c)`.
