(b) An experimental filter press having an area of 0.0414 m² is used to filter an aqueous BaCO3 slurry at a constant pressure of 267 kPa. The filtration equation obtained was t/v 10.25x106 V + 3.4x10³. where t is in s and V in m³. (i) (ii) If the same slurry and conditions are used in a leaf press having an area of 6.97 m², how long will it take to obtain 1000 litre of filtrate? After filtration, the cake is to be washed with 100 litre of water. Calculate the time of washing.