Brunette

The girls attending primary school are 30% blondes and 70% brunettes. 81% blondes and 19% brunette has blue eyes.

How many girls attend school altogether if 470 girls have blue eyes?

Correct answer:

x =  1250

Step-by-step explanation:


470 = (81/100)·(30/100)·x + (19/100)·(70/100)·x

37.6x = 47000


x = 47000/37.6 = 1250

x = 1250

Our simple equation calculator calculates it.



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