On a trip the ratio of teachers to students is 1:15. The ratio of male to female students is 7:5. What percentage of all the people on the trip are female students. Aswer to the nearest whole number.

Answer 1

1/15 are teachers

14/15 are students

7/12 of the students are female

7/12 x 14/15 = 7/6 x 7/15 = 49/90 of all the people are female students