Mathematics

A: 10 days; B: 42 days. Together?

A 8.08
B 52
C 32
D 420

A: 30 days; B: 19 days. Together?

A 49
B 11.63
C 11
D 570

A: 35 days; B: 7 days. Together?

A 5.83
B 42
C 28
D 245

A: 26 days; B: 43 days. Together?

A 16.2
B 69
C 17
D 1118

A: 7 days; B: 33 days. Together?

A 5.78
B 40
C 26
D 231

A: 35 days; B: 27 days. Together?

A 15.24
B 62
C 8
D 945

A: 32 days; B: 28 days. Together?

A 4
B 60
C 14.93
D 896

A: 19 days; B: 16 days. Together?

A 3
B 35
C 8.69
D 304