Concentration

How many grams of 65% and 50% acid is to be mixed to give 240 g acid with a concentration of 60%?

Correct answer:

a =  160 g
b =  80 g

Step-by-step explanation:

m=240 g  a+b=m 65a+50b=60 m a+b=240 65a+50b=60 240  a+b=240 65 a+50 b=60 240  a+b=240 65a+50b=14400  a=160=160 g b=80



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