Grams

How many grams of 5% solution do we need to add to 100 g of 50% solution to get a 20% solution?

Final Answer:

x =  200 g

Step-by-step explanation:

a=5%=1005​=201​=0.05 b=50%=10050​=21​=0.5 c=20%=10020​=51​=0.2 y=100 g  a⋅ x+b⋅ y=c⋅ (x+y) 0.05⋅ x+0.5⋅ 100=0.2⋅ (x+100)  0.15x=30  x=0.1530​=200  x=200=200 g

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