Solutions 70424

To what extent do we need to mix 82% and 54% solutions to get a 76% solution?

Correct answer:

r =  11:3

Step-by-step explanation:

q1=82%=10082=5041=0.82 q2=54%=10054=5027=0.54 q=76%=10076=2519=0.76  r = a:b  q1 a + q2 b = q (a+b) q1 b r + q2 b = q (b r+b)  q1 r+q2=q (r+1) 0.82 r+0.54=0.76 (r+1)  0.06r=0.22  r=0.060.22=3.66666667  r=3113.6666673.6667=11:3

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