Mathematics

Question

A mixture contains forty ounces of glycol and water and is ten percent glycol. If the mixture is to be strengthened to twenty-five percent, how much glycol is to be added?

1. 4 oz
2. 8 oz
3. 10 oz

2 Answer

  • 40oz glycol and water
    10% is glycol
    4oz is glycol
    36oz is water

    if glycol is to be added to make glycol 25% of all then
    note: water does not change
    100-25=75
    water does not change so
    36oz=75%
    12=25%

    there should be 12 oz of glycol total
    4 now
    12-4=8
    8 oz should be added


    sorry, I just wrote what I was thinking


    answer is 8oz
  • Answer:

    8 oz

    Step-by-step explanation:

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