A shopkeeper sold an article at $1050 and gained a 20% profit. What was the cost price?	Pick one.
A) $835  B) $845  C) $855  D) $865  E) $875
Let x be the cost price.   1.2x = 1050   x = 1050/1.2= 
<gadget id="calculator">1050/1.2</gadget>
<output>875</output>
875   The answer is $875.
<result>E</result>
A shopkeeper sold an article at $1050 and gained a 20% profit. What was the cost price?