A 10 million litres per day (MLD) sewage treatment plant (STP) is based on the Activated Sludge Process (ASP). First, the sewage undergoes primary treatment and the resulting treated sewage has BOD$_5$ of 140 mg/L concentration. This is further passed through a 1500 m\(^3\) capacity aeration tank (in ASP), where the mixed liquor volatile suspended solids (MLVSS) concentration is maintained at 3000 mg/L. The concentration of BOD$_5$ of the treated sewage is 5 mg/L.
The Food to Microorganisms ratio (F/M) of the ASP is _______ day\(^{-1}\) (rounded off to two decimal places).