There are 300 x 2/3 = <<300*2/3=200>>200 females in the school.

So, 300 - 200 = <<300-200=100>>100 are males.

Out of the 100 males, 100 x 1/10 = <<100*1/10=10>>10 are male foreign students.

Thus, there are 100 - 10 = <<100-10=90>>90 non-foreign male students.

# Answer

90
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At a certain school, 2/3 of the population are females. One-tenth of the males are foreign students. If the school has 300 students, how many students are non-foreign male students?
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90
At a certain school, 2/3 of the population are females. One-tenth of the males are foreign students. If the school has 300 students, how many students are non-foreign male students?
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