In a casting process, a mould of dimension 60 cm x 30 cm x 14 cm is to be filled by liquid metal using the top pouring method. The liquid metal height above the top surface of the mould is 14 cm and the area of the gate is 6 cm2. The time taken to fill the mould will be:

• A. 32 s
• B. 12 s
• C. 25.34 s
• D. 28.28 s