No.

Factor A/˚C

Factor B/˚C

Factor C/ml

Area

1#

260

280

1.2

1,417,084

2#

260

270

1.0

1,539,826

3#

260

290

1.1

1,347,606

4#

250

280

1.0

921,204

5#

250

270

1.1

878,664

6#

250

290

1.2

1,069,374

7#

270

280

1.1

1,425,087

8#

270

270

1.2

1,584,478

9#

270

290

1.0

1,670,361

k1

1,434,839

1,254,458

1,356,979

k2

956,414

1,334,323

1,377,130

k3

1,559,975

1,362,447

1,217,119

Maximum difference

603,561

107,989

160,011

Optimal scheme

A₃B₃C₂