How many quarts of peanut oil worth 19 cents per quart must be mixed with 100 quarts worth 25 cents per quart to produce a mixture worth 24 cents per quart?

20 quarts of peanut oil worth 19 cents per quart must be mixed.

Explanation

Lets assume, x quarts of peanut oil worth 19 cents per quart must be mixed.

Now we are mixing 100 quarts of another peanut oil worth 25 cents per quart with that x quarts. So, the total amount of the mixture quarts, which will worth 24 cents per quart.

Total price of x quarts oil cents

Total price of 100 quarts oil cents

and total price of the mixture cents

So the equation will be :

So, 20 quarts of peanut oil worth 19 cents per quart must be mixed.

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i think is g(1)=-1.

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