math
posted by jazzi .
One hundred six of the two hundred sixty three students in the auditiorium were boys. How many girls were in the auditiorium

do you just want confirmation of your answer, or do you really have no idea how to solve this?
Do you have any problem doing this exercise:
4 out of 6 students were boys. How many were girls?
If that's easy, just do the posted problem the same way, changing the numbers.