Brunette

The girls attending primary school are 80% blondes and 20% brunettes. 32% blondes and 68% brunette has blue eyes.

How many girls attend school altogether if 490 girls have blue eyes?

Final Answer:

x =  1250

Step-by-step explanation:

r1=32%=10032=258=0.32 r2=80%=10080=54=0.8 r3=68%=10068=2517=0.68 r4=20%=10020=51=0.2  490=r1 r2 x+r3 r4 x 490=0.32 0.8 x+0.68 0.2 x  0.392x=490  x=0.392490=1250  x=1250



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