The total cost of 50 copies of the book at the marked price of 275 per copy would be:
50 copies * $275 = $13,750
With a discount of 10 percent, the book seller would pay:
$13,750 - (0.10 * $13,750) = $13,750 - $1,375 = $12,375
So, the book seller paid $12,375 for all 50 copies of the book after the 10 percent discount.
A book seller bought 50 copies of a book whose marked price was 275 per copy. How much did he pay for all the books if he was given a discount of 10 percent
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