A rectangular orifice of 2 m width and 1.2 m deep is fitted in one side of large tank. The easier level on one side of the orifice is 3m above the top edge of the orifice while on the other side of the orifice the water level is 0.5 m below it s top edge. Calculate discharge if Cd = .64

• A. 4.95 m³/s
• B. 5.67 m³/s
• C. 3.56 m³/s
• D. 6.75 m³/s