There are 180 students in the sixth grade of experimental primary school, among which the number of girls is 9 / 11 of that of boys. How many boys and girls are there in the sixth grade?

Female: 180 ÷ (11 + 9) × 9 = 81 (person)
Male: 180-81 = 99 (person)
A: there are 99 boys and 81 girls
Pro, choose me

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