Ratio of Boys to Girls

Question

the senior highschool of school a is composed of 2700 students. The ratio of boys to girls is 5:6 respectively. According to the record there are 350 boys. Is the record correct? Justify your answer.

Answer 1

If there are 2700 students and 350 of them are boys. That means 2700-350 = 2350 of them are girls.

If I set this as my ratio, boys/girls = 350/2350, this reduces to 7/47, not 5/6. So no, the record is not correct.