Question

If 500 gm of salt solution has 30% salt in it, how much salt must be
added to make the concentration of salt 50% in the solution?​

Answer 1

Answer:

Equation:

salt + salt = salt

0.30*500 + 1*x = 0.50(500+x)

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30*500 + 100x = 50*500 + 50x

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50x = 20*500

x = 200 grams (amt. of pure salt to add)

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