1. ## Profit

A car dealer sold two used cars for $9999 each. On one she made a 10% profit and the other she took a 10% lost. What is the dollar amount of her overall loss over the two transactions? 2. Hello, Godfather! A tricky/sneaky/challenging problem . . . A car dealer sold two used cars for$9999 each.
On one she made a 10% profit and the other she took a 10% loss.
What is the dollar amount of her overall loss over the two transactions?

For the first car, the selling price was $9999 including a 10% profit. That is,$9999 equals the Cost plus 10% of the Cost.
The equation is: .C + 0.10C .= .9999 . . 1.1C = 9999 . . C = 9090

The car cost her $9090 and she sold it for$9999.
. . She made a profit of $909. For the second car, the selling price was$9999 including a 10% loss.
That is, $9999 is the Cost minus 10% of the Cost. The equation is: .C - 0.10C .= .9999 . . 0.9C = 9999 . . C = 11,110 The car cost her$11,100 and she sold it for $9999. . . She had a loss of$1,110.

Therefore, her overall loss is: .$1,110 - 909 .= .$201