In a non-pressurized gating system, a metal alloy is poured at a volumetric flow rate of 8 × 10-4 m3/s through a sprue with a base cross-sectional area of 400 mm2. Neglecting any frictional losses, what is the height of sprue in mm? (assume g = 10 m2/s)

• A. 175
• B. 275
• C. 200
• D. 225