please the answer under 40 min

A large open tank with a cross sectional area of 1.2 m contains ethylene glycol upto a level of 11 m from the bottom at a temperature of 53 degree Celcius. The specific gravity of the liquid is 1.11. The normal boiling point of ethylene glycol is 197.3 degree celcius and the molar mass of ethylene glycol is 62.06 g/mol. If a hole of 0.45 cm is developed at 3 m from the bottom of the tank. a) Estimate the initial mass flow rate of the fluid through the hole. Assume C0=1.0 [20 pts] b) How much volume of liquid remains in the tank at time t= [15 pts]