SOLUTION: The markup on a television set is 20 percent of the cost. The markup is what percent of the selling price? (markup = selling price

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Question 340376: The markup on a television set is 20 percent of the cost. The markup is what percent of the selling price?
(markup = selling price - cost)
(A) 8%
(B) 10%
(C) 12.5%
(D) 15%
(E) 16.66%

Could you please kindly provide me the solution of the above problem.

Thanks
Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website!
The markup on a television set is 20 percent of the cost. The markup is what percent of the selling price?
(markup = selling price - cost)
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Let cost = "x" dollars.
Then markup is "x+0.20x" = 1.2x
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To find percent the markup is to the selling price
0.20x/1.2x = 0.20/1.2 = 0.1667 = 16.67%
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Cheers,
Stan H.
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(A) 8%
(B) 10%
(C) 12.5%
(D) 15%
(E) 16.66%

Answer by solver91311(24713) (Show Source):
You can put this solution on YOUR website!

Let represent the cost. Let represent the selling price. We are given that the markup is 20% of the cost, so the markup is . From that we can write:

And a little algebra...

The markup as a percentage of sell price would be given by markup divided by sell price, so:

You can do your own arithmetic.

John

My calculator said it, I believe it, that settles it

SOLUTION: The markup on a television set is 20 percent of the cost. The markup is what percent of the selling price? (markup = selling price - cost) (A) 8% (B) 10% (C) 12.5% (D) 15