The volume Vcm³ of water in leaking vessel is given in terms of the time t seconds by the formula V = 500 – 3t – t³ then the rate at which water is leaking out when t = 10sec is:

203 cm²/sec

203 cm²/sec

0%

303 cm²/sec

303 cm²/sec

33.33%

200 cm²/sec

200 cm²/sec

66.67%

150 cm²/sec

150 cm²/sec

0%