SOLUTION: there are 357 seniors in harris highschool. The ratio of boys to girls is 7:10. How many girls are in the senior class?
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Question 1160773: there are 357 seniors in harris highschool. The ratio of boys to girls is 7:10. How many girls are in the senior class? Answer by ikleyn(52803) (Show Source):
As the problem states, there are 7 + 10 = 17 groups of seniors, all groups have equal population.
So, one group (= each group) is = 21 student.
Hence, the number of girls is 21*10 = 210. ANSWER
