Question 446924
100x12%=12
m+n=100
.1m+.15n=12
10m+15n=1200
10m+10n=1000
5n=200
n=40
m=60
The pharmacist used 60 ml of 10% solution, and 40 mL of 15% solution..
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Since it's 10% fruit juice, the rest is water:
2x.90=1.8
.75 x m=1.8
m=1.8/.75=2.4
2.4-2.0=.4 liters of pure fruit juice needed
2.4x.25=.6
.2 ltrs + .4 ltrs=.6 ltrs.