A watch was sold at a loss of 10%. If the watch was sold for $20 more, there would have been a gain of 6%. What is the cost price?  Choices:  A) $95  B) $105  C) $115  D) $125  E) $135
0.9x + 20 = 1.06x   0.16x = 20   x = 125   The answer is $125.
<result>D</result>
A watch was sold at a loss of 10%. If the watch was sold for $20 more, there would have been a gain of 6%. What is the cost price?