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The math teacher teaches Chinese and English.
Math: Chinese: English =9:5: 10. Math for men and women is 1:2. Chinese is 2:3.

Solution: Let math teacher 9X have language 5X, English teacher 10X, male math 3X and female math 6X, male language 2X and female language 3X, male English teacher A and female English teacher10x-a.

Then: 3X+2X+A:6X+3X+ 10X-A=7:9.

5x+A: 19X-A=7:9

45X+9A= 133X-7A

16A=88X

A=5.5

A: 10-A = 5.5:4.5 = 1 1:9