Male member * * * is:100×14/(14+11) = 56; Female member = 100-56=44.

But in Group A, male players: female players =12:13;

The number of people cannot be a decimal, so there are several situations;

1), male 12, female13;

Or 2), 24 males and 26 females;

Or 3), 36 males and 39 females; Three kinds; (No more than 44 female members)

The corresponding male members of Party B and Party C are:

1), b = (56-12) × 3/(3+5) = 44× 3/8 = 33/2 people (irrelevant).

2), b = (56-24) × 3/(3+5) = 32 × 3/8 =12 people. C =56-24- 12=20 people;

3), b = (56-36) × 3/(3+5) = 20 × 3/8 =15/2 (irrelevant)

So;

Group B has 12 male members.