David has $1,500 at the beginning of his trip, after spending money, he still has exactly $500 less than he spent on the trip. How much money does John still have?
Choose the correct choice:
A) $200 B) $400 C) $500 D) $800 E) $1,200
Suppose total money spent = x   Not spend (Money he still has)= x-500   x+x-500 = 1500   x= 1000   Money not spend= 1000-500= 
<gadget id="calculator">1000-500</gadget>
<output>500</output>
500   Answer : $500
<result>C</result>
David has $1,500 at the beginning of his trip, after spending money, he still has exactly $500 less than he spent on the trip. How much money does John still have?