# Math Help - Trouble with simple word problem

1. ## Trouble with simple word problem

Seller is being furnished metal castings from Buyer. The cost of castings is $15,000. Seller will "machine" the castings to arrive at a finished part, and Seller's total charge to Buyer for its machining labor is$5000 per casting.
Buyer wants Seller to machine 10 castings to arrive at a finished part.
Seller includes the cost of the castings, or $150,000, in its proposal to Buyer, plus$50,000 for its machining labor of $5000x10 castings. Total proposal price is$200,000.
Buyer is allowed to mess up 15% of the order without penalty; in other words, Buyer can machine and mess up 1.5 parts out of the total 10 castings.
BUT if Buyer messes up more than 15%, Seller must pay for a portion of the casting, but only to the extent that Seller will still make 15% profit.
Question:
What if Seller messes up 16%, or 1.6 parts?
How much of the casting cost can Seller reimburse Buyer which would still allow Seller to make 15% profit? (15% x $200,000=$30,000 total profit is required.)
Solve.

2. Hello and welcome to MathHelpForum.
You should understand that this is not a homework service nor a tutorial service.
So you need to either post some of your own work on a problem or explain what you do not understand about the question.

3. Im a 40 yr old lawyer. Not homework.

4. Originally Posted by davidjd214
Im a 40 yr old lawyer. Not homework.
Of course. And a lawyer spells I'm as Im?